Remove copyright strings ifdef'd out

We've ifdef'd out the copyright strings for some time now. Go ahead and
remove the ifdefs. Plus whatever other detritis was left over from other
recent removals. These copyright strings are present in the comments and
are largely from CSRG's attempt at adding their copyright to every
binary file (which modern interpretations of the license doesn't
require).

Sponsored by: Netflix

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 .c pattern

Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/

hostname: avoid strcpy() overlap in -d flag handling

We don't need the strcpy() anyways, just use a pointer to the hostname
buffer and move it forward for `hostname -d`.

Sponsored by: Klara, Inc.

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

Fix missing '-' for the flags -s and -d on both manpage and usage.

Reported by: garga, bde

Add -d flag that prints domain only.

PR: 212875
Submitted by: Ben RUBSON <ben.rubson@gmail.com>
Reviewed by: pi

Mark usage() __dead2

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.

Staticify internal routines.

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

Style(9) fixes, thanks to Ruslan.

Support the "-f" option by simply ignoring it.
This allows script compatibility with Linux, whose
"hostname" is the same as BSD "hostname -s".
With this change, "hostname -f" is the same on
both systems.

MFC after: 7 days

/*- or .\"- or #- to begin license clauses.

Remove clause 3 from the UCB licenses.

OK'ed by: imp, core

Quiet warnings about copyright[].

Consistently use __FBSDID

Fix warnings inspired by lint, a commercial lint and WARNS=4.

o __P has been reoved
o Old-style K&R declarations have been converted to new C89 style
o register has been removed
o prototype for main() has been removed (gcc3 makes it an error)
o int main(int argc, char *argv[]) is the preferred main definition.
o Attempt to not break style(9) conformance for declarations more than
they already are.

Silence WARNS=2 and BDECFLAGS on i386 and alpha

MFC After: 1 week

$Id$ -> $FreeBSD$

Correct use of .Nm. Add rcsid.

Import Lite2's src/bin. All files in src/bin are off the vendor branch,
so this doesn't change the active versions.

Revert part of previous patch: Don't use __progname.

/etc/netstart -> /etc/rc.network
Use __progname in usage string. Change usage string to match the man page.

compare return value from getopt against -1 rather than EOF, per the final
posix standard on the topic.

Revert $FreeBSD$ to $Id$

Make the long-awaited change from $Id$ to $FreeBSD$

This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore. This update would have been
insane otherwise.

Merge Lite2 mods, -Wall cleaning, and show usage if
incorrectly called.

Incorrect usage mod obtained from: NetBSD

Added $Id$

BSD 4.4 Lite bin Sources