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/

wc: Clean up and modernize.

* Drop <err.h>, which is unnecessary since we use libxo.

* As per POSIX, report an error if output fails.

* Fix some type mismatches.

* Use bool instead of int where appropriate.

* Avoid repeatedly checking for a null filename.

* Miscellaneous other tidying.

* Add tests (partly derived from work performed by SHENG-YI HONG <i19780219111@kimo.com>).

Sponsored by: Klara, Inc.
Reviewed by: kevans
Differential Revision: https://reviews.freebsd.org/D38496

wc: sandbox wc using capsicum

Reviewed by: AllanJude, emaste
Differential Revision: https://reviews.freebsd.org/D14409

Make libxo depend on libutil because it uses humanize_number after r287111

Remove overlinking in lib/libxo/tests, sbin/savecore, and
usr.bin/{iscsictl,wc,xo}

PR: 203673
Sponsored by: EMC / Isilon Storage Division

Upgrade libxo to 0.4.5.

Local changes incorporated by 0.4.5: r284340
Local changes retained: r276260, r282117

Obtained from: https://github.com/Juniper/libxo

Convert to usr.bin/ to LIBADD
Reduce overlinking

Convert to use libxo.

Obtained from: Phil Shafer <phil@juniper.net>
Sponsored by: Juniper Networks, Inc.

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.

Remove warnings and make wc WARNS=6 clean.
Add FreeBSD Id to Makefile.

Approved by: ssouhlal

BSD 4.4 Lite Usr.bin Sources