Remove $FreeBSD$: one-line nroff pattern

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

mktemp: add -p/--tmpdir argument

This matches other mktemp implementations, including OpenBSD and GNU.
The -p option can be used to provide a tmpdir prefix for specified
templates. Precedence works out like so:

-t flag:
- $TMPDIR
- -p directory
- /tmp

Implied -t flag (no arguments or only -d flag):
- -p directory
- $TMPDIR
- /tmp

Some tests have been added for mktemp(1) in the process.

Reviewed by: imp (earlier version), wosch
Sponsored by: Klara, Inc.
Differential Revision: https://reviews.freebsd.org/D37121

mktemp: add some GNU-compatible long options

GNU maketemp has long options for -d, -q, and -u, so let's add these
now for compatibility.

Reviewed by: emaste, imp, wosch
Sponsored by: Klara, Inc.
Differential Revision: https://reviews.freebsd.org/D37120

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

Use the macro for standard error return values.

.Dd not bumped because there is no important content change.

Approved by: bcr (mentor)
MFC after: 3 days
Obtained from: DragonflyBSD

Implement the Sun/GNU extension of using a default
prefix when no arguments are supplied.

Reviewed by: jilles
Approved by: cperciva
MFC after: 1 week

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.

Markup fixes.

mkstemp(3) and friends use a combination of base 10 digits, along
with upper and lower case letters from the English alphabet. Change
the number of possible file names mktemp will return from 26**6
to (10+26+26)**6 instead. This keeps things consistent with mkstemp(3)

Added the EXIT STATUS section where appropriate.

Add punctuation which appears to have been accidentally removed in
revision 1.6.

Mechanically kill hard sentence breaks.

Use proper article.

Use `The .Nm utility'

Remove whitespace at EOL.

Update HISTORY.

mdoc(7) police: use canonical form of .Dd macro.

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

Correct the usage of mktemp:
The old version lists all args as optional.
However, you need at least one arg to get a usable result.

PR: 18667
Reported by: obrien
Submitted by: Johan Karlsson <k@numeri.campus.luth.se>
Reviewed by: sheldonh

Fix example.

PR: 18953
Submitted by: Mark Ovens <mark@ukug.uk.freebsd.org>

Move RCS tags after copyright
Add DIAGNOSTICS section name

Remove single-space hard sentence breaks. These degrade the quality
of the typeset output, tend to make diffs harder to read and provide
bad examples for new-comers to mdoc.

.Ox is ``clever'' now.

$Id$ -> $FreeBSD$

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

Sort cross references.

Add usage() and rcsid. Remove unused #include. -Wall.

Bring in an old faithful tool I've been using for just over 4 years now
(originally on a different OS without mkstemp()), albeit somewhat
bashed and hacked into something that doesn't look too much like
the original any more. It should be upwardly compatable with
OpenBSD's mktemp(1) but does a couple of extra things.

I've taken OpenBSD's mktemp.1 man page and adapted it to suit.