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/

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

Document incomplete support of [=equiv=] and collation for ranges.

Back out non-collating [a-z] ranges (r302594).
Instead of changing the whole course to another POSIX-permitted way
for consistency and uniformity I decide to completely ignore missing
regex fucntionality and focus on fixing bugs in what we have now,
too many small obstacles we have choicing other way, counting ports.
Corresponding libc changes are backed out in r302824.

1) Following r302512 (remove collation support for [a-z]-ranges in libc)
remove collation support for a-z ranges here too.
It was implemented for single byte locales only in any case.

2) Reduce [Cc]flag loop to WCHAR_MAX, WINT_MAX here includes WEOF which is
not a character.

3) Optimize [Cc]flag case: don't repeatedly add the last character of
string2 to squeeze cset when string2 reach its EOS state.

4) Reflect in the manpage that [=equiv=] is implemented for single
byte locales only.

mdoc: terminate quoted strings.

Reviewed by: brueffer

Remove superfluous paragraph macro.

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.

- Document all character classes our tr(1) supports. [1]
- Mention that some of them are POSIX extensions. [2]

PR: docs/85062 [1]
Submitted by: Toby Peterson [1]
Obtained from: wctype(3) [2]
MFC after: 3 days

Expand contractions.

Sort sections.

Added the EXIT STATUS section where appropriate.

Formatting fixes.

(This exposes a bug in mdoc(7) for which a patch has been sent upstream.)

Tweak markup of quoted strings and characters: use Dq instead of enclosing
strings in ``obsolete quotes''. Use Li and Ql where appropriate.

Add a lengthy discussion of why "tr a-z A-Z" and "tr A-Z a-z" are not the
right way to perform case-conversion.

Update for multibyte character support: remove BUGS and change the
description of the -c option to refer to "values" instead of "byte values".

Mechanically kill hard sentence breaks.

Document incorrect handling of multibyte characters in input files
and character string arguments.

Clarify upper/lower conversion description more.

Explain better what happens when [:lower:] <-> [:upper:]

POSIX require complex processing of 'c-c' ranges: if one of the endpoints
is octal sequence, range is taken in the byte values order, for non-octal
endpoints range is taken in the sorted collation order.

Implement it.

POSIX requires 'c-c' must conform collate and be in collation order

Fix typos, mostly s/ an / a / where appropriate and a few s/an/and/
Add FreeBSD Id tag where missing.

mdoc(7) police: markup polishing.

Approved by: re

Use .Fl/Ar for flags and arguments.

Sort sections. Avoid using "The -? option" at the start of option descriptions.

Add the P1003.1-2001 -C option which complements the set of characters
(not byte values) specified by the first string argument.

Implement support for equivalence classes ([=e=]) when the mapping is
one-to-one (SUSv3)

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

mdoc(7) police: s/BSD/.Bx/ where appropriate.

Remove whitespace at EOL.

mdoc(7) police: -column lists require column width specifiers.

mdoc(7) police: split punctuation characters + misc fixes.

Prepare for mdoc(7)NG.

mdoc(7) police: use the new features of the Nm macro.

Avoid use of direct troff requests in mdoc(7) manual pages.

Add DIAGNOSTICS section name

$Id$ -> $FreeBSD$

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

Submitted by: Joachim Kuebart, thanks.
Add -u option to force unbuffered output

Use err(3) instead of local redefinition. Cosmetic in usage().

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