Prefer HTTPS to FTP and HTTP in documentation

Most of this change is to boilerplate commentary such as license URLs.
This change was prompted by ftp://ftp.gnu.org's going-away party,
planned for November.  Change these FTP URLs to https://ftp.gnu.org
instead.  Make similar changes for URLs to other organizations moving
away from FTP.  Also, change HTTP to HTTPS for URLs to gnu.org and
fsf.org when this works, as this will further help defend against
man-in-the-middle attacks (for this part I omitted the MS-DOS and
MS-Windows sources and the test tarballs to keep the workload down).
HTTPS is not fully working to lists.gnu.org so I left those URLs alone
for now.

1 files changed, 7 insertions, 7 deletions

diff --git a/doc/emacs/emacs.texi b/doc/emacs/emacs.texi
index 1f603540615..1b9a8b39a4a 100644
--- a/doc/emacs/emacs.texi
+++ b/doc/emacs/emacs.texi
@@ -118,11 +118,11 @@ some of the ways to customize it; it corresponds to GNU Emacs version
 @ifset WWW_GNU_ORG
 @html
 The homepage for GNU Emacs is at
-<a href="/software/emacs/">http://www.gnu.org/software/emacs/</a>.<br>
+<a href="/software/emacs/">https://www.gnu.org/software/emacs/</a>.<br>
 To view this manual in other formats, click
 <a href="/software/emacs/manual/emacs.html">here</a>.<br>
 You can also purchase a printed copy from the
-<a href="http://shop.fsf.org/product/emacs-manual/">FSF store</a>.
+<a href="https://shop.fsf.org/product/emacs-manual/">FSF store</a>.
 @end html
 @end ifset
 
@@ -1314,7 +1314,7 @@ Emacs editors, all sharing common principles of organization.  For
 information on the underlying philosophy of Emacs and the lessons
 learned from its development, see @cite{Emacs, the Extensible,
 Customizable Self-Documenting Display Editor}, available from
-@url{ftp://publications.ai.mit.edu/ai-publications/pdf/AIM-519A.pdf}.
+@url{http://hdl.handle.net/1721.1/5736}.
 
 This version of the manual is mainly intended for use with GNU Emacs
 installed on GNU and Unix systems.  GNU Emacs can also be used on
@@ -1348,7 +1348,7 @@ One way to get a copy of GNU Emacs is from someone else who has it.
 You need not ask for our permission to do so, or tell any one else;
 just copy it.  If you have access to the Internet, you can get the
 latest distribution version of GNU Emacs by anonymous FTP; see
-@url{http://www.gnu.org/software/emacs} on our website for more
+@url{https://www.gnu.org/software/emacs} on our website for more
 information.
 
 You may also receive GNU Emacs when you buy a computer.  Computer
@@ -1365,19 +1365,19 @@ Software Foundation are tax deductible in the US@.  If you use GNU Emacs
 at your workplace, please suggest that the company make a donation.
 To donate, see @url{https://my.fsf.org/donate/}.
 For other ways in which you can help, see
-@url{http://www.gnu.org/help/help.html}.
+@url{https://www.gnu.org/help/help.html}.
 
 @c The command view-order-manuals uses this anchor.
 @anchor{Printed Books}
 We also sell hardcopy versions of this manual and @cite{An
 Introduction to Programming in Emacs Lisp}, by Robert J. Chassell.
-You can visit our online store at @url{http://shop.fsf.org/}.
+You can visit our online store at @url{https://shop.fsf.org/}.
 The income from sales goes to support the foundation's purpose: the
 development of new free software, and improvements to our existing
 programs including GNU Emacs.
 
 If you need to contact the Free Software Foundation, see
-@url{http://www.fsf.org/about/contact/}, or write to
+@url{https://www.fsf.org/about/contact/}, or write to
 
 @display
 Free Software Foundation