maint: Update copyright notices in --version output.

List the most recent year in which changes were made, per
<https://www.gnu.org/prep/standards/html_node/_002d_002dversion.html>.

* build-aux/declared.sh (func_version): Say 2019.
* build-aux/libtool-next-version (func_version): Likewise.
* build-aux/run-test (func_version): Likewise.
* check-module (COPYRIGHT_NOTICE): Say 2012.
* lib/git-merge-changelog.c (main): Say 2020.

6 files changed, 17 insertions, 6 deletions

diff --git a/ChangeLog b/ChangeLog
index 0b7254982e..ec7011e60c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,14 @@
+2021-01-01  Bruno Haible  <bruno@clisp.org>
+
+	maint: Update copyright notices in --version output.
+	List the most recent year in which changes were made, per
+	<https://www.gnu.org/prep/standards/html_node/_002d_002dversion.html>.
+	* build-aux/declared.sh (func_version): Say 2019.
+	* build-aux/libtool-next-version (func_version): Likewise.
+	* build-aux/run-test (func_version): Likewise.
+	* check-module (COPYRIGHT_NOTICE): Say 2012.
+	* lib/git-merge-changelog.c (main): Say 2020.
+
 2020-12-31  Paul Eggert  <eggert@cs.ucla.edu>
 
 	filename: change filename.h comment to LGPLv2.1+
diff --git a/build-aux/declared.sh b/build-aux/declared.sh
index b981d8f2f2..204e6287ff 100755
--- a/build-aux/declared.sh
+++ b/build-aux/declared.sh
@@ -47,7 +47,7 @@ Report bugs to <bruno@clisp.org>."
 func_version ()
 {
   echo "declared.sh (GNU gnulib)"
-  echo "Copyright (C) 2020 Free Software Foundation, Inc.
+  echo "Copyright (C) 2019 Free Software Foundation, Inc.
 License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>
 This is free software: you are free to change and redistribute it.
 There is NO WARRANTY, to the extent permitted by law."
diff --git a/build-aux/libtool-next-version b/build-aux/libtool-next-version
index 7087ade2d5..66e3b7755f 100755
--- a/build-aux/libtool-next-version
+++ b/build-aux/libtool-next-version
@@ -69,7 +69,7 @@ Report bugs to <bruno@clisp.org>."
 func_version ()
 {
   echo "libtool-next-version (GNU gnulib)"
-  echo "Copyright (C) 2020 Free Software Foundation, Inc.
+  echo "Copyright (C) 2019 Free Software Foundation, Inc.
 License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>
 This is free software: you are free to change and redistribute it.
 There is NO WARRANTY, to the extent permitted by law."
diff --git a/build-aux/run-test b/build-aux/run-test
index f3029a4757..44f9a5c1c5 100755
--- a/build-aux/run-test
+++ b/build-aux/run-test
@@ -48,7 +48,7 @@ func_version ()
 {
   echo "\
 run-test (GNU gnulib)
-Copyright (C) 2020 Free Software Foundation, Inc.
+Copyright (C) 2019 Free Software Foundation, Inc.
 License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>
 This is free software: you are free to change and redistribute it.
 There is NO WARRANTY, to the extent permitted by law.
diff --git a/check-module b/check-module
index 7a26e4ca34..173f2a5639 100755
--- a/check-module
+++ b/check-module
@@ -40,7 +40,7 @@ use Getopt::Long;
 use File::Basename;
 #use Coda;
 
-my $COPYRIGHT_NOTICE = "Copyright (C) 2006 Free Software Foundation, Inc.\n".
+my $COPYRIGHT_NOTICE = "Copyright (C) 2012 Free Software Foundation, Inc.\n".
 "This is free software.  You may redistribute copies of it under the terms of\n".
 "the GNU General Public License <https://www.gnu.org/licenses/gpl.html>.\n".
 "There is NO WARRANTY, to the extent permitted by law.\n";
diff --git a/lib/git-merge-changelog.c b/lib/git-merge-changelog.c
index 7b74a490e0..0301f8fff5 100644
--- a/lib/git-merge-changelog.c
+++ b/lib/git-merge-changelog.c
@@ -1,5 +1,5 @@
 /* git-merge-changelog - git "merge" driver for GNU style ChangeLog files.
-   Copyright (C) 2008-2020 Bruno Haible <bruno@clisp.org>
+   Copyright (C) 2008-2021 Bruno Haible <bruno@clisp.org>
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -1045,7 +1045,7 @@ License GPLv2+: GNU GPL version 2 or later <https://gnu.org/licenses/gpl.html>\n
 This is free software: you are free to change and redistribute it.\n\
 There is NO WARRANTY, to the extent permitted by law.\n\
 ",
-              "2008");
+              "2020");
       printf ("Written by %s.\n", "Bruno Haible");
       exit (EXIT_SUCCESS);
     }