- Copy stable/10 (r259064) to releng/10.0 as part of the
10.0-RELEASE cycle.
- Update __FreeBSD_version [1]
- Set branch name to -RC1

[1] 10.0-CURRENT __FreeBSD_version value ended at '55', so
start releng/10.0 at '100' so the branch is started with
a value ending in zero.

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

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

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

Switch the default WARNS level for sbin/ to 6.

Submitted by: Ulrich Spörlein

Extend kldunload(8) functionality and fix minor problems:
o multiple modules can be unloaded at once (specified either by id or be
module name)
o exit with EX_USAGE after usage() is called.
o remove unused variables, since we keep command line flags as bitmask,
in 'opt'.
o 'kldload -n ...' does nothing. Add comment to this options.

Additionally:
o Update manual page to conform new functionality.
o Increace WARNS to 6. Because we can.

Approved by: cognet (mentor)
MFC after: 1 week

Make this WARNS=5 clean by adding () in 'if (a || (b && c))'.

Look at by: sebastian.ssmoller@web.de on audit@

Default to WARNS=2.
Binary builds that cannot handle this must explicitly set WARNS=0.

Reviewed by: mike

Removed -I${.CURDIR}/.../sys from CFLAGS.

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

Set the default manual section for sbin/ to 8.

$Id$ -> $FreeBSD$

use += on cflags

Submitted-by: Steve Price <sprice@hiwaay.net>

activate the programs that will be used to manipulate kld modules

fix a few problems with missing headers, warn called with an exit
value, and undeclared getopt vars

these programs now compile -Wall clean (and yes, I know I should use
more than just -Wall) :)

Add utilities for the kernel linker.