Copy stable/10@r272459 to releng/10.1 as part of
the 10.1-RELEASE process.

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

MFC various moves of tools/regressions/ tests to the new infrastructure.

- r263220 Migrate tools/regression/sbin/ to the new tests layout.
- r263222 Add Makefile missed in r263220.
- r263226 Migrate tools/regression/{usr.bin/lastcomm,usr.sbin}/ to the new tests layout.
- r263227 Migrate most of tools/regression/usr.bin/ to the new tests layout.
- r263345 Expand tabs that sneaked in into spaces.
- r263346 Migrate tools/regression/usr.bin/make/ to the new tests layout.
- r263348 Add Makefiles missed in r263346.
- r263351 Migrate tools/regression/usr.bin/pkill/ to the new tests layout.
- r263388 Mark multi_test as requiring /usr/share/dict/words.
- r263814 Fix path to the run.pl script to let these tests run.
- r264742 Prevent building tests when bootstrapping make.

This is 'make tinderbox' clean.

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

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

Raise WARNS for various tools where possible.

Submitted by: Marius Nünnerich <marius@nuenneri.ch>

pkill(1) first appeared in /usr/bin, but later it was moved to /bin
for the convenience of rc.d. Now it has happily lived there for quite
a while. So move the pkill(1) source files from usr.bin to bin, too.

Approved by: gad

Tell in a comment that the symlinks from /usr/bin are
for compatibility with other OS types, too.

Pointed out by: gad

Install pkill(1), aka pgrep(1), to /bin so that rc scripts
can use this small and nifty utility. Create compatibility
symlinks from /usr/bin for the time being to avoid breaking
custom scripts relying on the hardcoded path to the utility.

If pkill(1) takes root, its source should be repocopied some
day to src/bin.

Idea by: des
Discussed with: brooks (in cvs-src and cvs-all)

Removed bitrot.

Apply style.Makefile(5).

Add a cast to get this to compile with WARNS=5 on sparc64. This is
needed because off_t == __int64_t, while size_t == __uint64_t. This
also compiles with WARNS=5 on amd64, but I haven't tested the other
platforms yet.

Change some routine and variable names to match the FreeBSD system.

Written by: Mario Sergio Fujikawa Ferreira <lioux@FreeBSD.org>
Obtained from: the sysutils/pkill port

Add the `pkill' and `pgrep' commands from NetBSD. This is the source
straight from NetBSD (except to add the RCS-ID lines for FreeBSD).
These will probably require a few updates before they are added to
the FreeBSD buildworld. I might MFC these to 4.x-stable after 4.10.

Discussed on: freebsd-arch
Obtained from: NetBSD (and OpenBSD also has these)