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

The last big commit: let usr.sbin/ use WARNS=6 by default.

WANRS=6 cleanup for vidcontrol(1):
- Use foo(void) instead of foo().
- Use static where applicable.
- Apply more const's when passing parameters
- signed/unsigned madness
- Avoid namespace collision by adding underscores.
- For 64-bit architectures, use %zx instead of %x
when necessary.
- When storing constants, use const instead of
variable.
- Bump WARNS?= from 2 to 6

Remove GCC'isms in CFLAGS.

- Backout botched attempt to introduce MANSECT feature.
- MAN[1-9] -> MAN.

Set the default manual section for usr.sbin/ to 8.

Add a -s option for setting the current vty. This should make
life easier if a PS/2 mouse locks up the keyboard (frequent-ish,
but not repeatable).
Tidy up code (a bit) and make it -Wall

Is this a 2.2 candidate ? (although it doesn't -Wall in 2.2 because
of the lack of sys/sysproto.h

Added vidcontrol util from 1.1.5.1+

Reviewed by:
Submitted by: