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, 1 insertions, 1 deletions

diff --git a/admin/nt/README-UNDUMP.W32 b/admin/nt/README-UNDUMP.W32
index f4214161230..aa91633dd49 100644
--- a/admin/nt/README-UNDUMP.W32
+++ b/admin/nt/README-UNDUMP.W32
@@ -7,7 +7,7 @@ This README file describes how to dump a bare precompiled version of
 GNU Emacs for Windows.  This barebin distribution supplements the
 standard distribution of Emacs, which you can download from:
 
-        ftp://ftp.gnu.org/gnu/emacs/
+        https://ftp.gnu.org/gnu/emacs/
 
 If you do not have the "bin" or "src" distribution, then you will need
 to download one of those before you can use this barebin version.