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

Fix includes in usr.sbin/fstyp/zfs.c

Approved by: bapt (mentor)
MFC after: 1 week
Sponsored by: ScaleEngine Inc.
Differential Revision: https://reviews.freebsd.org/D4710

Eliminate unneeded copying of vdev data, goto, etc. and add a note
that checksum of vdev label should be checked (which is not done
currently).

No functional change.

While I'm there, raise WARNS to 2.

Reviewed by: allanjude
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D3508

Remove excess copyright lines propogated by copy/paste

Approved by: trasz

Add the ability to detect ZFS and GELI encrypted file systems to fstyp(8)

Functionality is hidden behind the -u flag to avoid confusing automounters

PR: 200823
Reviewed by: asomers, eadler, wblock (man page)
Approved by: trasz
MFC after: 10 days
Relnotes: yes
Sponsored by: ScaleEngine Inc.
Differential Revision: https://reviews.freebsd.org/D2045