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.

27 files changed, 29 insertions, 29 deletions

diff --git a/lisp/calendar/appt.el b/lisp/calendar/appt.el
index 08f1bf49788..2fc5040a756 100644
--- a/lisp/calendar/appt.el
+++ b/lisp/calendar/appt.el
@@ -21,7 +21,7 @@
 ;; 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/>.
 
 ;;; Commentary:
 
diff --git a/lisp/calendar/cal-bahai.el b/lisp/calendar/cal-bahai.el
index 6e624542cbf..e0b7f4a3c22 100644
--- a/lisp/calendar/cal-bahai.el
+++ b/lisp/calendar/cal-bahai.el
@@ -20,7 +20,7 @@
 ;; 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/>.
 
 ;;; Commentary:
 
diff --git a/lisp/calendar/cal-china.el b/lisp/calendar/cal-china.el
index 72e7675a78c..5761e576817 100644
--- a/lisp/calendar/cal-china.el
+++ b/lisp/calendar/cal-china.el
@@ -21,7 +21,7 @@
 ;; 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/>.
 
 ;;; Commentary:
 
diff --git a/lisp/calendar/cal-coptic.el b/lisp/calendar/cal-coptic.el
index 920ec7d5ce0..bff0ade6547 100644
--- a/lisp/calendar/cal-coptic.el
+++ b/lisp/calendar/cal-coptic.el
@@ -21,7 +21,7 @@
 ;; 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/>.
 
 ;;; Commentary:
 
diff --git a/lisp/calendar/cal-dst.el b/lisp/calendar/cal-dst.el
index be709f5e1c9..659b6349bbb 100644
--- a/lisp/calendar/cal-dst.el
+++ b/lisp/calendar/cal-dst.el
@@ -22,7 +22,7 @@
 ;; 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/>.
 
 ;;; Commentary:
 
@@ -406,7 +406,7 @@ This function respects the value of `calendar-dst-check-each-year-flag'."
                       (cadr (calendar-dst-find-startend year))
                     (nth 4 calendar-current-time-zone-cache))))
         (if expr (eval expr)))
-      ;; New US rules commencing 2007.  ftp://elsie.nci.nih.gov/pub/.
+      ;; New US rules commencing 2007.  https://www.iana.org/time-zones
       (and (not (zerop calendar-daylight-time-offset))
            (calendar-nth-named-day 2 0 3 year))))
 
@@ -417,7 +417,7 @@ This function respects the value of `calendar-dst-check-each-year-flag'."
                       (nth 2 (calendar-dst-find-startend year))
                     (nth 5 calendar-current-time-zone-cache))))
         (if expr (eval expr)))
-      ;; New US rules commencing 2007.  ftp://elsie.nci.nih.gov/pub/.
+      ;; New US rules commencing 2007.  https://www.iana.org/time-zones
       (and (not (zerop calendar-daylight-time-offset))
            (calendar-nth-named-day 1 0 11 year))))
 
diff --git a/lisp/calendar/cal-french.el b/lisp/calendar/cal-french.el
index 3ecd90a86e0..ede38217ee6 100644
--- a/lisp/calendar/cal-french.el
+++ b/lisp/calendar/cal-french.el
@@ -22,7 +22,7 @@
 ;; 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/>.
 
 ;;; Commentary:
 
diff --git a/lisp/calendar/cal-hebrew.el b/lisp/calendar/cal-hebrew.el
index 15de7cde032..ba18b92ff9d 100644
--- a/lisp/calendar/cal-hebrew.el
+++ b/lisp/calendar/cal-hebrew.el
@@ -22,7 +22,7 @@
 ;; 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/>.
 
 ;;; Commentary:
 
diff --git a/lisp/calendar/cal-html.el b/lisp/calendar/cal-html.el
index f002133900e..41463cfc94a 100644
--- a/lisp/calendar/cal-html.el
+++ b/lisp/calendar/cal-html.el
@@ -21,7 +21,7 @@
 ;; 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/>.
 
 ;;; Commentary:
 
diff --git a/lisp/calendar/cal-islam.el b/lisp/calendar/cal-islam.el
index c6478937800..3650db493cf 100644
--- a/lisp/calendar/cal-islam.el
+++ b/lisp/calendar/cal-islam.el
@@ -21,7 +21,7 @@
 ;; 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/>.
 
 ;;; Commentary:
 
diff --git a/lisp/calendar/cal-iso.el b/lisp/calendar/cal-iso.el
index c802c848e01..427fc22b8e5 100644
--- a/lisp/calendar/cal-iso.el
+++ b/lisp/calendar/cal-iso.el
@@ -21,7 +21,7 @@
 ;; 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/>.
 
 ;;; Commentary:
 
diff --git a/lisp/calendar/cal-julian.el b/lisp/calendar/cal-julian.el
index 40887b41712..2ad3017d625 100644
--- a/lisp/calendar/cal-julian.el
+++ b/lisp/calendar/cal-julian.el
@@ -21,7 +21,7 @@
 ;; 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/>.
 
 ;;; Commentary:
 
diff --git a/lisp/calendar/cal-mayan.el b/lisp/calendar/cal-mayan.el
index 2363cf535b6..8f3a4a4a5a5 100644
--- a/lisp/calendar/cal-mayan.el
+++ b/lisp/calendar/cal-mayan.el
@@ -23,7 +23,7 @@
 ;; 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/>.
 
 ;;; Commentary:
 
diff --git a/lisp/calendar/cal-menu.el b/lisp/calendar/cal-menu.el
index 1039b49591e..90cce2840cf 100644
--- a/lisp/calendar/cal-menu.el
+++ b/lisp/calendar/cal-menu.el
@@ -22,7 +22,7 @@
 ;; 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/>.
 
 ;;; Commentary:
 
diff --git a/lisp/calendar/cal-move.el b/lisp/calendar/cal-move.el
index a845348b964..0ed5dc0bfb5 100644
--- a/lisp/calendar/cal-move.el
+++ b/lisp/calendar/cal-move.el
@@ -21,7 +21,7 @@
 ;; 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/>.
 
 ;;; Commentary:
 
diff --git a/lisp/calendar/cal-persia.el b/lisp/calendar/cal-persia.el
index 571b397828b..3365ae71a00 100644
--- a/lisp/calendar/cal-persia.el
+++ b/lisp/calendar/cal-persia.el
@@ -21,7 +21,7 @@
 ;; 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/>.
 
 ;;; Commentary:
 
diff --git a/lisp/calendar/cal-tex.el b/lisp/calendar/cal-tex.el
index 1ea10bf9d70..d2998071077 100644
--- a/lisp/calendar/cal-tex.el
+++ b/lisp/calendar/cal-tex.el
@@ -22,7 +22,7 @@
 ;; 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/>.
 
 ;;; Commentary:
 
diff --git a/lisp/calendar/cal-x.el b/lisp/calendar/cal-x.el
index f7ca3695a07..aca9d1c510e 100644
--- a/lisp/calendar/cal-x.el
+++ b/lisp/calendar/cal-x.el
@@ -22,7 +22,7 @@
 ;; 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/>.
 
 ;;; Commentary:
 
diff --git a/lisp/calendar/calendar.el b/lisp/calendar/calendar.el
index 1d6749319d8..96ccd94382c 100644
--- a/lisp/calendar/calendar.el
+++ b/lisp/calendar/calendar.el
@@ -21,7 +21,7 @@
 ;; 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/>.
 
 ;;; Commentary:
 
diff --git a/lisp/calendar/diary-lib.el b/lisp/calendar/diary-lib.el
index 4ee6719d326..520c730f5e7 100644
--- a/lisp/calendar/diary-lib.el
+++ b/lisp/calendar/diary-lib.el
@@ -20,7 +20,7 @@
 ;; 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/>.
 
 ;;; Commentary:
 
diff --git a/lisp/calendar/holidays.el b/lisp/calendar/holidays.el
index 5b51b16d223..0a80b79f442 100644
--- a/lisp/calendar/holidays.el
+++ b/lisp/calendar/holidays.el
@@ -21,7 +21,7 @@
 ;; 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/>.
 
 ;;; Commentary:
 
diff --git a/lisp/calendar/icalendar.el b/lisp/calendar/icalendar.el
index aa092b233ef..129cd6d9ad3 100644
--- a/lisp/calendar/icalendar.el
+++ b/lisp/calendar/icalendar.el
@@ -21,7 +21,7 @@
 ;; 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/>.
 
 ;;; Commentary:
 
diff --git a/lisp/calendar/lunar.el b/lisp/calendar/lunar.el
index 4d39b15aa03..9f7fad99f46 100644
--- a/lisp/calendar/lunar.el
+++ b/lisp/calendar/lunar.el
@@ -22,7 +22,7 @@
 ;; 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/>.
 
 ;;; Commentary:
 
diff --git a/lisp/calendar/parse-time.el b/lisp/calendar/parse-time.el
index b781cb0eb48..dc405b9d972 100644
--- a/lisp/calendar/parse-time.el
+++ b/lisp/calendar/parse-time.el
@@ -18,7 +18,7 @@
 ;; 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/>.
 
 ;;; Commentary:
 
diff --git a/lisp/calendar/solar.el b/lisp/calendar/solar.el
index f5cde3feac4..5bf072384fd 100644
--- a/lisp/calendar/solar.el
+++ b/lisp/calendar/solar.el
@@ -23,7 +23,7 @@
 ;; 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/>.
 
 ;;; Commentary:
 
diff --git a/lisp/calendar/time-date.el b/lisp/calendar/time-date.el
index d9986231fdd..61722f61ea0 100644
--- a/lisp/calendar/time-date.el
+++ b/lisp/calendar/time-date.el
@@ -19,7 +19,7 @@
 ;; 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/>.
 
 ;;; Commentary:
 
diff --git a/lisp/calendar/timeclock.el b/lisp/calendar/timeclock.el
index a4709c3b4b5..a70e3ee416c 100644
--- a/lisp/calendar/timeclock.el
+++ b/lisp/calendar/timeclock.el
@@ -20,7 +20,7 @@
 ;; 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/>.
 
 ;;; Commentary:
 
diff --git a/lisp/calendar/todo-mode.el b/lisp/calendar/todo-mode.el
index ba7389c07a2..79fda462847 100644
--- a/lisp/calendar/todo-mode.el
+++ b/lisp/calendar/todo-mode.el
@@ -20,7 +20,7 @@
 ;; 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/>.
 
 ;;; Commentary: