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

Convert usr.sbin to LIBADD
Reduce overlinking

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

In verbose mode print disk sizes in human readable form as well.

OK'ed by: phk

Make WARNS=5 clean.

Prodded by: Stefan Farfeleder <stefan@fafoe.narf.at>

Diskinfo is a small program to access the basic properties of a disk device:
sectorsize, mediasize etc.

It also contains a small and naïve benchmark which reports on seek
and transfer performance.