usr.bin: Remove ancient SCCS tags.

Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a perl script.

Sponsored by: Netflix

Remove $FreeBSD$: one-line sh pattern

Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/

vmstat(1): various nits

Continue my parade on introspection tools by fixing:
- failed to check for null after reallocf
- avoid the comma operator
- mark usage as dead
- correct size of len

vmstat(8): Hook up NetBSD tests

The NetBSD tests for vmstat are basically just a smoke test, ensuring that
executing `vmstat` and `vmstat -s` exit successfully. This is more than we
test now, so go with it.

vmstat: fix style(9) violations and bump WARNS.

Based on the patch by: Pawel Biernacki <pawel.biernacki@gmail.com>
Sponsored by: Mysterious Code Ltd. (Pawel),
The FreeBSD Foundation (me)
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D13228

Convert vmstat to use libxo.

This patch was based on this patch:
https://github.com/Juniper/libxo/blob/master/patches/vmstat.patch

by Phil Shafer at Juniper Networks, but updated to the latest
vmstat code.

Reviewed by: allanjude
Differential Revision: https://reviews.freebsd.org/D3935

Convert to usr.bin/ to LIBADD
Reduce overlinking

Check in first src/tests snapshot from NetBSD anoncvs

Sources were obtained like so:

% export CVSROOT="anoncvs@anoncvs.NetBSD.org:/cvsroot"
% cvs -z9 co -D "09/30/2014 20:45" -P src/tests
% mv src/tests/* tests/dist/.

'*CVS*' has been added to svn:ignore to ease updating periodically from
upstream

Some line ending issues had to be resolved with test outputs and scripts
via dos2unix and by deleting the eol-style property set in usr.bin/sort

Discussed with: rpaulo
Sponsored by: EMC / Isilon Storage Division

A new jail(8) with a configuration file, to replace the work currently done
by /etc/rc.d/jail.

Create the altix project branch. The altix project will add support
for the SGI Altix 350 to FreeBSD/ia64. The hardware used for porting
is a two-module system, consisting of a base compute module and a
CPU expansion module. SGI's NUMAFlex architecture can be an excellent
platform to test CPU affinity and NUMA-aware features in FreeBSD.

Build usr.bin/ with WARNS=6 by default.

Also add some missing $FreeBSD$ to keep svn happy.

- Import the HEAD csup code which is the basis for the cvsmode work.

Add the -H, -h and -P flags to vmstat. -P causes per-cpu output of
user/system/idle stats. -h feeds the memory column through
humanize_number() to reduce the amount of column overflowing. -H turns
this off. -h is turned on by default if stdout is a tty.

Teach vmstat -m and vmstat -z to use libmemstat(3). Certain
statistics from -z are now a bit different due to changes in the
way statistics are now measured. Reproduce with some amount of
accuracy the slightly obscure layouts adopted by the two kernel
sysctls. In the future, we might want to normalize them.

GC dosysctl(), which is now no longer used.

MFC after: 1 week

Put libdevstat before libkvm, because the former depends on the latter.

Finish the transition from libkvm to sysctl that I started a while ago.
The use of libkvm for post-mortem analysis is still supported (though it
could use more testing). We can now remove vmstat's setgid bit.

While I'm here, hack the interrupt listing code to not display interrupts
that haven't occurred unless the -a option was given on the command line,
and document this change.

Remove NO_WERRORs and WARNS=n's. To be revisited after GCC3.

WARNS=2 fixes, but set NO_WERROR, as there are some HardToFix(tm)
warnings originating in system headers.

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

MAN[1-9] -> MAN.

Update system to new device statistics code.

Submitted by: "Kenneth D. Merry" <ken@plutotech.com>

Fixed DPADD.

More absolute paths

More merry makefile munging for man page compatability.

BSD 4.4 Lite Usr.bin Sources