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 $FreeBSD$: two-line .c pattern

Remove /^#include\s+<sys/cdefs.h>.*$\n\s+__FBSDID\("\$FreeBSD\$"\);\n/

systat: mostly clean up warns

Sponsored by: Rubicon Communications, LLC ("Netgate")

systat: Handle SIGWINCH to properly window resizing and adjust
-swap disk stat based on new size.

Display corrupts after resizing a window.
Process SIGWINCH to redraw all window.

Submitted by: Yoshihiro Ota ota@j.email.ne.jp
Differential Revision: https://reviews.freebsd.org/D29337

systat -zarc to display disk activities like -vm

PR: 213310
Submitted by: ota
MFH: 4 weeks
Differential Revision: https://reviews.freebsd.org/D18726

Fix systat's :only command parser for the multiple arguments case

According to systat(1) :only option is supposed to accept multiple drives
but the parser for its arguments stops after first entry. Fix the parser
logic to accept multiple drives.

PR: 59220
Reported by: Andy Farkas <andyf@speednet.com.au>
MFC after: 1 week

Fix inconsistency in return values introduced by r343222

Consistently return 1 or the case of missing arguments in both functions

PR: 219689
MFC after: 1 week
X-MFC-With: 343222

Fix crash in systat(4) when certain commands are called without arguments

Add check for missing arguments to dsmatchselect and dsselect

PR: 219689
Submitted by: Marko Turk <mt@markoturk.info>
MFC after: 1 week

General further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 3-Clause license.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.

Renumber copyright clause 4

Renumber cluase 4 to 3, per what everybody else did when BSD granted
them permission to remove clause 3. My insistance on keeping the same
numbering for legal reasons is too pedantic, so give up on that point.

Submitted by: Jan Schaumann <jschauma@stevens.edu>
Pull Request: https://github.com/freebsd/freebsd/pull/96

Replace index() and rindex() calls with strchr() and strrchr().

The index() and rindex() functions were marked LEGACY in the 2001
revision of POSIX and were subsequently removed from the 2008 revision.
The strchr() and strrchr() functions are part of the C standard.

This makes the source code a lot more consistent, as most of these C
files also call into other str*() routines. In fact, about a dozen
already perform strchr() calls.

Fix whitespace inconsistencies in systat(1).

According to md5(1), the resulting binary is the same.

Remove the advertising clause from UCB copyrighted files in usr.bin. This
is in accordance with the information provided at
ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change

Also add $FreeBSD$ to a few files to keep svn happy.

Discussed with: imp, rwatson

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.

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

ANSIfy and remove register.

Resulting binary verified with strip(1)+md5(1).

When a numeric field overflows its width, try formatting the number in
'kilo' or 'mega' with appropriate suffix instead of filling the field
with stars.

Add #include <sys/resource.h>

Remove #include <sys/dkstat.h>

WARNS=2 fixes with NO_WERROR set, as there are some header issues
with namelists. use __FBSDID().

Convert systat(1) to use the new devstat interface.

Submitted by: "Sergey A. Osokin" <osa@freebsd.org.ru>

$Id$ -> $FreeBSD$

Quiet many compiler warnings.

Change the devstat generation number from an int to a long. The int-sized
generation was causing unaligned access faults on the Alpha.

I have incremented the devstat version number, since this is an interface
change. You'll need to recompile libdevstat, systat, iostat, vmstat and
rpc.rstatd along with your kernel.

Partially Submitted by: Andrew Gallatin <gallatin@cs.duke.edu>

Update system to new device statistics code.

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