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 nroff pattern

Remove /^\.\\"\s*\$FreeBSD\$$\n/

uname.1: Clarify the -r option

It is some times hard to understand the difference between
kernel version and userland version. So clarify the -r option
of uname(1) in terms of a printed kernel version.

While here, add some cross references:

- cross reference freebsd-version(1) in uname(1)
- cross reference freebsd-version(1) and uname(1) in freebsd-update(8)

PR: 265594
Reported by: rwatson
Reviewed by: gbe, imp
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D36516

uname(1): Fix a typo in the man page date

MFC after: 3 days

Explicitly note in the EXAMPLES section that uname(3) contains more details

MFC after: 1 week

Document the order in which the kernel and the user environment versions
are printed when both -K and -U options are passed on the command line.

Approved by: 0mp
Differential Revision: https://reviews.freebsd.org/D25970

Refine the history of uname. It appeared in 4.4BSD. It was not in v7 unix. It
was one of the additions in PWB, and appeared in System III and later commercial
versions of Unix. The different args to uname weren't aded until System III. Add
a quick note to note the late entry into the BSD fork of Unix since PWB
otherwise implies a pre-fork date.

Expose the kernel's build-ID through `uname -b`

After r348611 the kernel's build-ID is available via sysctl. Add a -b flag
to uname to report it.

Submitted by: Ali Mashtizadeh <ali_mashtizadeh.com>
Reviewed by: markj, imp
Relnotes: Yes
Event: Waterloo Hackathon 2019
Differential Revision: https://reviews.freebsd.org/D20511

- Add a simple example to uname(1) manual page to show how the hardware
platform (returned by -m) can be different from the machine's processor
architecture (-p)
- Document that make(1) sets universal MACHINE and MACHINE_ARCH variables
based on these values

Reviewed by: imp, manpages (bjk)
Approved by: bjk, imp (implied)
Differential Revision: https://reviews.freebsd.org/D10489

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

Change introduction history.

Add -K (__FreeBSD_version of kernel) and -U (__FreeBSD_version of userland).
Things like Makefile.inc1 resort to parsing /usr/include/osreldate.h with
awk because this isn't easily available by other means. The separation
of user and kernel versions is important for jail/chroot environments.

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.

Add new -o option (r203042) to manpage synopsis and usage().

Submitted by: ru

Allow -o as a synonym for -s, for compatibility with other systems.

Using -s is preferred, but some existing scripts and makefiles expect
to get the system name from uname -o.

Reviewed by: imp

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

Sort sections.

Added the EXIT STATUS section where appropriate.

Fixed spelling of the document date.

Make kernel identification (`ident' in the config(8) driver) available to
userland, and the kernel. In the kernel by way of the 'ident[]' variable
akin to all the other stuff generated by newvers.sh. In userland it is
available to sysctl consumers via KERN_IDENT or 'kern.ident'. It is exported
by uname(1) by the -i flag.

Reviewed by: hackers@

Mostly rewrite the flag handling of uname(1) to be overridable, such as:
freefall% uname -s
FreeBSD
freefall% env UNAME_s=Linnex ./uname -s
Linnex

MFC after: 1 month

Note that this appeared at least as early as PWB UNIX.

Use the literal string 'PWB UNIX', as we still have no .At macro for it.

Note early appearence of some commands. These actually appeared in PWB, but
it seems we don't have a macro for that yet, so list them in the first UNIX
release since then that we have a .At for: v7.

mdoc(7) police: bump document date for the -p change, tidy up the markup.

'uname -p' prints the value of hw.machine_arch instead of hw.machine.

Reviewed by: imp
No response from: -arch
MFC after: 3 weeks

mdoc(7) police: utilize the new .Ex macro.

$Id$ -> $FreeBSD$

Add $Id$, to make it simpler for members of the translation teams to
track.

The $Id$ line is normally at the bottom of the main comment block in the
man page, separated from the rest of the manpage by an empty comment,
like so;

.\" $Id$
.\"

If the immediately preceding comment is a @(#) format ID marker than the
the $Id$ will line up underneath it with no intervening blank lines.
Otherwise, an additional blank line is inserted.

Approved by: bde

Add a -p option which is the same as the -m option but provided
for SVR4 compatibility.

PR: 5826

Nm uname -> Nm.

Show the real revision date and not the date that this
manpage is being viewed.

Sort cross references.

Use the .Bx macro where appropriate.

BSD 4.4 Lite Usr.bin Sources