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, 2 insertions, 2 deletions

diff --git a/README b/README
index 527e406a639..c3cf78f04ca 100644
--- a/README
+++ b/README
@@ -28,7 +28,7 @@ See the "Bugs" section of the Emacs manual for more information on how
 to report bugs.  (The file 'BUGS' in this directory explains how you
 can find and read that section using the Info files that come with
 Emacs.)  For a list of mailing lists related to Emacs, see
-<http://savannah.gnu.org/mail/?group=emacs>.  For the complete
+<https://savannah.gnu.org/mail/?group=emacs>.  For the complete
 list of GNU mailing lists, see <http://lists.gnu.org/>.
 
 The 'etc' subdirectory contains several other files, named in capital
@@ -116,4 +116,4 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
-along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
+along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.