all: prefer https: URLs

92 files changed, 92 insertions, 92 deletions

diff --git a/lib/unicase/cased.c b/lib/unicase/cased.c
index 271d4885a9..a1a1414bb7 100644
--- a/lib/unicase/cased.c
+++ b/lib/unicase/cased.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/casefold.h b/lib/unicase/casefold.h
index 963180e6c9..6aa1392281 100644
--- a/lib/unicase/casefold.h
+++ b/lib/unicase/casefold.h
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include "unitypes.h"
 
diff --git a/lib/unicase/caseprop.h b/lib/unicase/caseprop.h
index 43aeaf8de5..6798d96c82 100644
--- a/lib/unicase/caseprop.h
+++ b/lib/unicase/caseprop.h
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <stdbool.h>
 #include "unitypes.h"
diff --git a/lib/unicase/context.h b/lib/unicase/context.h
index 941cf44ecc..e89d32d4cb 100644
--- a/lib/unicase/context.h
+++ b/lib/unicase/context.h
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 
 /* The context of a prefix string combines the information of the "Before C"
diff --git a/lib/unicase/empty-prefix-context.c b/lib/unicase/empty-prefix-context.c
index 84d2210a50..5afd92190f 100644
--- a/lib/unicase/empty-prefix-context.c
+++ b/lib/unicase/empty-prefix-context.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/empty-suffix-context.c b/lib/unicase/empty-suffix-context.c
index 1da1f68d60..8eac1f5de5 100644
--- a/lib/unicase/empty-suffix-context.c
+++ b/lib/unicase/empty-suffix-context.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/ignorable.c b/lib/unicase/ignorable.c
index 80990d02b3..8839d7b6a9 100644
--- a/lib/unicase/ignorable.c
+++ b/lib/unicase/ignorable.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/invariant.h b/lib/unicase/invariant.h
index 89674b25a7..ed2a4b209f 100644
--- a/lib/unicase/invariant.h
+++ b/lib/unicase/invariant.h
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <stdbool.h>
 #include <stddef.h>
diff --git a/lib/unicase/locale-language.c b/lib/unicase/locale-language.c
index dbe294b3d8..3031f720e2 100644
--- a/lib/unicase/locale-language.c
+++ b/lib/unicase/locale-language.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/simple-mapping.h b/lib/unicase/simple-mapping.h
index bfc1e5e5ad..48487772a4 100644
--- a/lib/unicase/simple-mapping.h
+++ b/lib/unicase/simple-mapping.h
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 ucs4_t
 FUNC (ucs4_t uc)
diff --git a/lib/unicase/special-casing.c b/lib/unicase/special-casing.c
index 384bb712d9..a463bf5993 100644
--- a/lib/unicase/special-casing.c
+++ b/lib/unicase/special-casing.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/special-casing.in.h b/lib/unicase/special-casing.in.h
index fc57523b9b..72c2ea242a 100644
--- a/lib/unicase/special-casing.in.h
+++ b/lib/unicase/special-casing.in.h
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <stddef.h>
 
diff --git a/lib/unicase/tocasefold.c b/lib/unicase/tocasefold.c
index cc5ffd3b7f..fc59bd8081 100644
--- a/lib/unicase/tocasefold.c
+++ b/lib/unicase/tocasefold.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/tolower.c b/lib/unicase/tolower.c
index b52dd1108a..21e38d6913 100644
--- a/lib/unicase/tolower.c
+++ b/lib/unicase/tolower.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/totitle.c b/lib/unicase/totitle.c
index c83d0ee292..fa61578acc 100644
--- a/lib/unicase/totitle.c
+++ b/lib/unicase/totitle.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/toupper.c b/lib/unicase/toupper.c
index bf14f6eadd..2c86bbca91 100644
--- a/lib/unicase/toupper.c
+++ b/lib/unicase/toupper.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u-casecmp.h b/lib/unicase/u-casecmp.h
index 457acb9cdc..1b05b3a423 100644
--- a/lib/unicase/u-casecmp.h
+++ b/lib/unicase/u-casecmp.h
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 int
 FUNC (const SRC_UNIT *s1, size_t n1, const SRC_UNIT *s2, size_t n2,
diff --git a/lib/unicase/u-casecoll.h b/lib/unicase/u-casecoll.h
index 9a9cdbcbed..39ab682135 100644
--- a/lib/unicase/u-casecoll.h
+++ b/lib/unicase/u-casecoll.h
@@ -14,7 +14,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 int
 FUNC (const UNIT *s1, size_t n1, const UNIT *s2, size_t n2,
diff --git a/lib/unicase/u-casefold.h b/lib/unicase/u-casefold.h
index f76a6dd6f2..cc01df747e 100644
--- a/lib/unicase/u-casefold.h
+++ b/lib/unicase/u-casefold.h
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 UNIT *
 FUNC (const UNIT *s, size_t n, const char *iso639_language,
diff --git a/lib/unicase/u-casemap.h b/lib/unicase/u-casemap.h
index a479f1356e..d79654a5fa 100644
--- a/lib/unicase/u-casemap.h
+++ b/lib/unicase/u-casemap.h
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 UNIT *
 FUNC (const UNIT *s, size_t n,
diff --git a/lib/unicase/u-casexfrm.h b/lib/unicase/u-casexfrm.h
index 536f5f30c9..4bc29f23d9 100644
--- a/lib/unicase/u-casexfrm.h
+++ b/lib/unicase/u-casexfrm.h
@@ -14,7 +14,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 char *
 FUNC (const UNIT *s, size_t n, const char *iso639_language, uninorm_t nf,
diff --git a/lib/unicase/u-ct-casefold.h b/lib/unicase/u-ct-casefold.h
index 5b4de099e5..dd6727fcf7 100644
--- a/lib/unicase/u-ct-casefold.h
+++ b/lib/unicase/u-ct-casefold.h
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 UNIT *
 FUNC (const UNIT *s, size_t n,
diff --git a/lib/unicase/u-ct-totitle.h b/lib/unicase/u-ct-totitle.h
index 04586887e4..9ac09e9008 100644
--- a/lib/unicase/u-ct-totitle.h
+++ b/lib/unicase/u-ct-totitle.h
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 /* Quoting the Unicode standard, section "Default Case Algorithms":
      Find the word boundaries in X according to Unicode Standard Annex #29,
diff --git a/lib/unicase/u-is-cased.h b/lib/unicase/u-is-cased.h
index 6dcbea7bc2..71e7fee2cf 100644
--- a/lib/unicase/u-is-cased.h
+++ b/lib/unicase/u-is-cased.h
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 int
 FUNC (const UNIT *s, size_t n, const char *iso639_language,
diff --git a/lib/unicase/u-is-invariant.h b/lib/unicase/u-is-invariant.h
index 0f83ae5671..6638d858c5 100644
--- a/lib/unicase/u-is-invariant.h
+++ b/lib/unicase/u-is-invariant.h
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 int
 FUNC (const UNIT *s, size_t n,
diff --git a/lib/unicase/u-prefix-context.h b/lib/unicase/u-prefix-context.h
index f2e1fe5eb6..5f1891dd9e 100644
--- a/lib/unicase/u-prefix-context.h
+++ b/lib/unicase/u-prefix-context.h
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 casing_prefix_context_t
 FUNC1 (const UNIT *s, size_t n)
diff --git a/lib/unicase/u-suffix-context.h b/lib/unicase/u-suffix-context.h
index 81885d86c0..a8aa729c75 100644
--- a/lib/unicase/u-suffix-context.h
+++ b/lib/unicase/u-suffix-context.h
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 casing_suffix_context_t
 FUNC1 (const UNIT *s, size_t n)
diff --git a/lib/unicase/u-totitle.h b/lib/unicase/u-totitle.h
index b74c754052..b16ad5013d 100644
--- a/lib/unicase/u-totitle.h
+++ b/lib/unicase/u-totitle.h
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 UNIT *
 FUNC (const UNIT *s, size_t n, const char *iso639_language,
diff --git a/lib/unicase/u16-casecmp.c b/lib/unicase/u16-casecmp.c
index 0e2ea7b893..ad5e9447f4 100644
--- a/lib/unicase/u16-casecmp.c
+++ b/lib/unicase/u16-casecmp.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u16-casecoll.c b/lib/unicase/u16-casecoll.c
index 3efbae7680..982e0ace78 100644
--- a/lib/unicase/u16-casecoll.c
+++ b/lib/unicase/u16-casecoll.c
@@ -14,7 +14,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u16-casefold.c b/lib/unicase/u16-casefold.c
index ccc1d60fd0..3087e3dd84 100644
--- a/lib/unicase/u16-casefold.c
+++ b/lib/unicase/u16-casefold.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u16-casemap.c b/lib/unicase/u16-casemap.c
index 3ab53883d6..18482c37dc 100644
--- a/lib/unicase/u16-casemap.c
+++ b/lib/unicase/u16-casemap.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u16-casexfrm.c b/lib/unicase/u16-casexfrm.c
index f77d54e070..afa1a90fc8 100644
--- a/lib/unicase/u16-casexfrm.c
+++ b/lib/unicase/u16-casexfrm.c
@@ -14,7 +14,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u16-ct-casefold.c b/lib/unicase/u16-ct-casefold.c
index 71cbf5582d..7e0ae3ee13 100644
--- a/lib/unicase/u16-ct-casefold.c
+++ b/lib/unicase/u16-ct-casefold.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u16-ct-tolower.c b/lib/unicase/u16-ct-tolower.c
index 9eea5e703c..98e623c2d5 100644
--- a/lib/unicase/u16-ct-tolower.c
+++ b/lib/unicase/u16-ct-tolower.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u16-ct-totitle.c b/lib/unicase/u16-ct-totitle.c
index 158295f0cf..55aa2e9e13 100644
--- a/lib/unicase/u16-ct-totitle.c
+++ b/lib/unicase/u16-ct-totitle.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u16-ct-toupper.c b/lib/unicase/u16-ct-toupper.c
index 40441a1019..d5ae990a15 100644
--- a/lib/unicase/u16-ct-toupper.c
+++ b/lib/unicase/u16-ct-toupper.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u16-is-cased.c b/lib/unicase/u16-is-cased.c
index 0479e96f49..4818b4c15b 100644
--- a/lib/unicase/u16-is-cased.c
+++ b/lib/unicase/u16-is-cased.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u16-is-casefolded.c b/lib/unicase/u16-is-casefolded.c
index 94b1b0882c..f6e4b7f1e4 100644
--- a/lib/unicase/u16-is-casefolded.c
+++ b/lib/unicase/u16-is-casefolded.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u16-is-invariant.c b/lib/unicase/u16-is-invariant.c
index 74f4a02f13..60a89b2a41 100644
--- a/lib/unicase/u16-is-invariant.c
+++ b/lib/unicase/u16-is-invariant.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u16-is-lowercase.c b/lib/unicase/u16-is-lowercase.c
index f5bbd74dc5..e8cf46197e 100644
--- a/lib/unicase/u16-is-lowercase.c
+++ b/lib/unicase/u16-is-lowercase.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u16-is-titlecase.c b/lib/unicase/u16-is-titlecase.c
index 33245dbc52..6f2416c779 100644
--- a/lib/unicase/u16-is-titlecase.c
+++ b/lib/unicase/u16-is-titlecase.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u16-is-uppercase.c b/lib/unicase/u16-is-uppercase.c
index 5df415aeab..72f70cc10b 100644
--- a/lib/unicase/u16-is-uppercase.c
+++ b/lib/unicase/u16-is-uppercase.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u16-prefix-context.c b/lib/unicase/u16-prefix-context.c
index 49d1816060..135821734c 100644
--- a/lib/unicase/u16-prefix-context.c
+++ b/lib/unicase/u16-prefix-context.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u16-suffix-context.c b/lib/unicase/u16-suffix-context.c
index 823f87fabc..069e9985f3 100644
--- a/lib/unicase/u16-suffix-context.c
+++ b/lib/unicase/u16-suffix-context.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u16-tolower.c b/lib/unicase/u16-tolower.c
index 1477c182d3..717f033564 100644
--- a/lib/unicase/u16-tolower.c
+++ b/lib/unicase/u16-tolower.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u16-totitle.c b/lib/unicase/u16-totitle.c
index b5c2c4f506..922c0ac8e1 100644
--- a/lib/unicase/u16-totitle.c
+++ b/lib/unicase/u16-totitle.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u16-toupper.c b/lib/unicase/u16-toupper.c
index 87ad89d2d4..28a60125ba 100644
--- a/lib/unicase/u16-toupper.c
+++ b/lib/unicase/u16-toupper.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u32-casecmp.c b/lib/unicase/u32-casecmp.c
index 46737e0134..34305791ff 100644
--- a/lib/unicase/u32-casecmp.c
+++ b/lib/unicase/u32-casecmp.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u32-casecoll.c b/lib/unicase/u32-casecoll.c
index d4c742bbfb..05a6ce37eb 100644
--- a/lib/unicase/u32-casecoll.c
+++ b/lib/unicase/u32-casecoll.c
@@ -14,7 +14,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u32-casefold.c b/lib/unicase/u32-casefold.c
index 8420820726..ec4098622d 100644
--- a/lib/unicase/u32-casefold.c
+++ b/lib/unicase/u32-casefold.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u32-casemap.c b/lib/unicase/u32-casemap.c
index b2411eb2d2..4fa214d4ce 100644
--- a/lib/unicase/u32-casemap.c
+++ b/lib/unicase/u32-casemap.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u32-casexfrm.c b/lib/unicase/u32-casexfrm.c
index 45b3fe9b8b..32d449d164 100644
--- a/lib/unicase/u32-casexfrm.c
+++ b/lib/unicase/u32-casexfrm.c
@@ -14,7 +14,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u32-ct-casefold.c b/lib/unicase/u32-ct-casefold.c
index 7d58aa52e6..2731800583 100644
--- a/lib/unicase/u32-ct-casefold.c
+++ b/lib/unicase/u32-ct-casefold.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u32-ct-tolower.c b/lib/unicase/u32-ct-tolower.c
index 8daf165ccf..8aad64f17b 100644
--- a/lib/unicase/u32-ct-tolower.c
+++ b/lib/unicase/u32-ct-tolower.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u32-ct-totitle.c b/lib/unicase/u32-ct-totitle.c
index a9ea73f17e..b31967ab78 100644
--- a/lib/unicase/u32-ct-totitle.c
+++ b/lib/unicase/u32-ct-totitle.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u32-ct-toupper.c b/lib/unicase/u32-ct-toupper.c
index 4411dbafc4..dbf466bffe 100644
--- a/lib/unicase/u32-ct-toupper.c
+++ b/lib/unicase/u32-ct-toupper.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u32-is-cased.c b/lib/unicase/u32-is-cased.c
index f5b466bf7d..ea2abcb157 100644
--- a/lib/unicase/u32-is-cased.c
+++ b/lib/unicase/u32-is-cased.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u32-is-casefolded.c b/lib/unicase/u32-is-casefolded.c
index b6a767c90e..fbfcd8b79d 100644
--- a/lib/unicase/u32-is-casefolded.c
+++ b/lib/unicase/u32-is-casefolded.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u32-is-invariant.c b/lib/unicase/u32-is-invariant.c
index 507b5f08c4..be9b6216e8 100644
--- a/lib/unicase/u32-is-invariant.c
+++ b/lib/unicase/u32-is-invariant.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u32-is-lowercase.c b/lib/unicase/u32-is-lowercase.c
index b3cdd5e72b..d95a44f99b 100644
--- a/lib/unicase/u32-is-lowercase.c
+++ b/lib/unicase/u32-is-lowercase.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u32-is-titlecase.c b/lib/unicase/u32-is-titlecase.c
index 7d3493a415..7ad941b7f1 100644
--- a/lib/unicase/u32-is-titlecase.c
+++ b/lib/unicase/u32-is-titlecase.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u32-is-uppercase.c b/lib/unicase/u32-is-uppercase.c
index 453a2ec4dd..fae90ddd92 100644
--- a/lib/unicase/u32-is-uppercase.c
+++ b/lib/unicase/u32-is-uppercase.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u32-prefix-context.c b/lib/unicase/u32-prefix-context.c
index 592fb65c7d..0cb73f1ec0 100644
--- a/lib/unicase/u32-prefix-context.c
+++ b/lib/unicase/u32-prefix-context.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u32-suffix-context.c b/lib/unicase/u32-suffix-context.c
index a8fffb85dd..d25a36b010 100644
--- a/lib/unicase/u32-suffix-context.c
+++ b/lib/unicase/u32-suffix-context.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u32-tolower.c b/lib/unicase/u32-tolower.c
index 7d2aced87c..014e640b09 100644
--- a/lib/unicase/u32-tolower.c
+++ b/lib/unicase/u32-tolower.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u32-totitle.c b/lib/unicase/u32-totitle.c
index f0810962fb..3e76905630 100644
--- a/lib/unicase/u32-totitle.c
+++ b/lib/unicase/u32-totitle.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u32-toupper.c b/lib/unicase/u32-toupper.c
index d93291da7f..4951ba9894 100644
--- a/lib/unicase/u32-toupper.c
+++ b/lib/unicase/u32-toupper.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u8-casecmp.c b/lib/unicase/u8-casecmp.c
index 0c6b513d0a..dbb726fde5 100644
--- a/lib/unicase/u8-casecmp.c
+++ b/lib/unicase/u8-casecmp.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u8-casecoll.c b/lib/unicase/u8-casecoll.c
index 7a4b119bb7..2f1b7a79bb 100644
--- a/lib/unicase/u8-casecoll.c
+++ b/lib/unicase/u8-casecoll.c
@@ -14,7 +14,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u8-casefold.c b/lib/unicase/u8-casefold.c
index 4c635893d9..ed3919da56 100644
--- a/lib/unicase/u8-casefold.c
+++ b/lib/unicase/u8-casefold.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u8-casemap.c b/lib/unicase/u8-casemap.c
index ca1b18a64b..6a4aa5a01a 100644
--- a/lib/unicase/u8-casemap.c
+++ b/lib/unicase/u8-casemap.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u8-casexfrm.c b/lib/unicase/u8-casexfrm.c
index 9afd1f650d..18a6b680e9 100644
--- a/lib/unicase/u8-casexfrm.c
+++ b/lib/unicase/u8-casexfrm.c
@@ -14,7 +14,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u8-ct-casefold.c b/lib/unicase/u8-ct-casefold.c
index 5b64cf04c8..fe9fac7a85 100644
--- a/lib/unicase/u8-ct-casefold.c
+++ b/lib/unicase/u8-ct-casefold.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u8-ct-tolower.c b/lib/unicase/u8-ct-tolower.c
index aff70dd9ce..a2e525cc47 100644
--- a/lib/unicase/u8-ct-tolower.c
+++ b/lib/unicase/u8-ct-tolower.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u8-ct-totitle.c b/lib/unicase/u8-ct-totitle.c
index b74cc27d0b..c9b8ff2559 100644
--- a/lib/unicase/u8-ct-totitle.c
+++ b/lib/unicase/u8-ct-totitle.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u8-ct-toupper.c b/lib/unicase/u8-ct-toupper.c
index 7ddb046ebe..ff922dafab 100644
--- a/lib/unicase/u8-ct-toupper.c
+++ b/lib/unicase/u8-ct-toupper.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u8-is-cased.c b/lib/unicase/u8-is-cased.c
index f0e77ae9f3..4d747bab8e 100644
--- a/lib/unicase/u8-is-cased.c
+++ b/lib/unicase/u8-is-cased.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u8-is-casefolded.c b/lib/unicase/u8-is-casefolded.c
index a009aa3260..6301e4849a 100644
--- a/lib/unicase/u8-is-casefolded.c
+++ b/lib/unicase/u8-is-casefolded.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u8-is-invariant.c b/lib/unicase/u8-is-invariant.c
index b27c7d4c74..c823a0cc4b 100644
--- a/lib/unicase/u8-is-invariant.c
+++ b/lib/unicase/u8-is-invariant.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u8-is-lowercase.c b/lib/unicase/u8-is-lowercase.c
index 2c5958a37b..bbff6612ac 100644
--- a/lib/unicase/u8-is-lowercase.c
+++ b/lib/unicase/u8-is-lowercase.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u8-is-titlecase.c b/lib/unicase/u8-is-titlecase.c
index 9095086564..1e50ccfbd4 100644
--- a/lib/unicase/u8-is-titlecase.c
+++ b/lib/unicase/u8-is-titlecase.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u8-is-uppercase.c b/lib/unicase/u8-is-uppercase.c
index 3a9b321ee4..93e0de08ec 100644
--- a/lib/unicase/u8-is-uppercase.c
+++ b/lib/unicase/u8-is-uppercase.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u8-prefix-context.c b/lib/unicase/u8-prefix-context.c
index 7728c83dfe..01da39be2f 100644
--- a/lib/unicase/u8-prefix-context.c
+++ b/lib/unicase/u8-prefix-context.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u8-suffix-context.c b/lib/unicase/u8-suffix-context.c
index cb174ee456..bcd52fb4b2 100644
--- a/lib/unicase/u8-suffix-context.c
+++ b/lib/unicase/u8-suffix-context.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u8-tolower.c b/lib/unicase/u8-tolower.c
index 9681bd591e..5419c38932 100644
--- a/lib/unicase/u8-tolower.c
+++ b/lib/unicase/u8-tolower.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u8-totitle.c b/lib/unicase/u8-totitle.c
index 4cb9a64fc2..f85c8377e9 100644
--- a/lib/unicase/u8-totitle.c
+++ b/lib/unicase/u8-totitle.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/u8-toupper.c b/lib/unicase/u8-toupper.c
index 6ddad4493a..7c95a8fb17 100644
--- a/lib/unicase/u8-toupper.c
+++ b/lib/unicase/u8-toupper.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/ulc-casecmp.c b/lib/unicase/ulc-casecmp.c
index 4573ce59a8..8fd1426638 100644
--- a/lib/unicase/ulc-casecmp.c
+++ b/lib/unicase/ulc-casecmp.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/ulc-casecoll.c b/lib/unicase/ulc-casecoll.c
index 6aa379d627..34cd1818ee 100644
--- a/lib/unicase/ulc-casecoll.c
+++ b/lib/unicase/ulc-casecoll.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/ulc-casexfrm.c b/lib/unicase/ulc-casexfrm.c
index dbf9a03816..280f79c17e 100644
--- a/lib/unicase/ulc-casexfrm.c
+++ b/lib/unicase/ulc-casexfrm.c
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/lib/unicase/unicasemap.h b/lib/unicase/unicasemap.h
index 1804b44019..a87c9bbfb3 100644
--- a/lib/unicase/unicasemap.h
+++ b/lib/unicase/unicasemap.h
@@ -13,7 +13,7 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #include <stddef.h>