Remove $FreeBSD$: one-line .c pattern

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

libc: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using mis-identified many licenses so this was mostly a manual - error
prone - task.

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.

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.

- ANSIfy function definitions
- use nul when we are looking for a terminating character where appropriate

Approved by: imp

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

Simplify by removing useless local variables and explicit null termination.

Remove unnecessary #include <assert.h>; it was used to bring in the
_DIAGASSERT macro on NetBSD, but we don't need it.

Add restrict qualifiers where C99 permits them. All of these already had
restrict qualifiers on their prototypes in <wchar.h>.

Fix the style of the SCM ID's.
I believe have made all of libc .c's as consistent as possible.

rcsid[]->__FBSDID

Make the rcsid and FreeBSD IDs more sane in the wcs* and wmem* files.
Do the same for the non-wcs*/wmem* files while I'm here.

Unbreak world; _DIAGASSERT macro is not available in FreeBSD.

initial import of locale insensitive wcs* and wmem* functions.

Obtained from: NetBSD and Citrus.