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, 3 insertions, 3 deletions

diff --git a/test/src/undo-tests.el b/test/src/undo-tests.el
index 0cf7fc9f59c..3ff75ae68d5 100644
--- a/test/src/undo-tests.el
+++ b/test/src/undo-tests.el
@@ -15,7 +15,7 @@
 ;; General Public License for more details.
 ;;
 ;; You should have received a copy of the GNU 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/'.
 
 ;;; Commentary:
 
@@ -200,7 +200,7 @@
                   '(error "Unrecognized entry in undo list \"bogus\""))))
         (buffer-string))))))
 
-;; http://debbugs.gnu.org/14824
+;; https://debbugs.gnu.org/14824
 (ert-deftest undo-test-buffer-modified ()
   "Test undoing marks buffer unmodified."
   (with-temp-buffer
@@ -326,7 +326,7 @@ undo-make-selective-list."
     (insert "This sentence corrupted?")
     (undo-boundary)
     ;; Same as recipe at
-    ;; http://debbugs.gnu.org/cgi/bugreport.cgi?bug=16411
+    ;; https://debbugs.gnu.org/cgi/bugreport.cgi?bug=16411
     (insert "aaa")
     (undo-boundary)
     (undo)