Copy stable/11@r303970 to releng/11.0 as part of the 11.0-RELEASE
cycle.

Prune svn:mergeinfo from the new branch, and rename it to RC1.

Update __FreeBSD_version.

Use the quarterly branch for the default FreeBSD.conf pkg(8) repo and
the dvd1.iso packages population.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, as nothing has been merged
here.

Additional commits post-branch will follow.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Rename usr.sbin/mtree to usr.sbin/fmtree since it is not what /usr/sbin/mtree
actually is (which is usr.sbin/nmtree).

This has tricked me numerous times.

o Add an 'optional' keyword, which allows files to be in the
specification, but not in the file hierarchy.

PR: bin/99531
Submitted by: skv
Obtained from: NetBSD, originally from Ed Symanzik
Regress. test: test/test05.sh
MFC after: 1 month

Adds sha256 support. While it is a good idea to also add sha384 and
sha512, I did not do that since it is not entirely clear where "the one
true place" to hold their implementations is going to be. Sha256 is
different since mtree already links against libmd.

Make recommended procedure for integrity checking in the manpage
consistent.

Fix a bug with -f spec1 -f spec2 comparison, which prevented
test/tes03.sh from running successfully.

Reviewed by: phk, cperciva

Fix a bug relating to the "files before directories" sort order when
comparing two spec files.

Add a small testcase for the new -f-f mode.

Give mtree(8) the ability to take [two -f spec] arguments and compare
the two specifications to each other.

Make mtree's update function update the modification time too.

Submitted by: Dan Nelson <dnelson@allantgroup.com>
PR: 53063

Update test-case to also fail on filenames containing '#'

Add another test-script for mtree(8): Check symlinks with space in them.

Add a test script which Mtree fails.