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/src/image.c b/src/image.c
index 7f5cf1a9669..3dac7086cb4 100644
--- a/src/image.c
+++ b/src/image.c
@@ -15,7 +15,7 @@ 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/>.  */
 
 #include <config.h>
 
@@ -7148,7 +7148,7 @@ tiff_size_of_memory (thandle_t data)
 
 /* GCC 3.x on x86 Windows targets has a bug that triggers an internal
    compiler error compiling tiff_handler, see Bugzilla bug #17406
-   (http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17406).  Declaring
+   (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=17406).  Declaring
    this function as external works around that problem.  */
 # if defined (__MINGW32__) && __GNUC__ == 3
 #  define MINGW_STATIC