include: 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 .h pattern

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

include: 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.

- Add restrict keyword to glob(3)

PR: kern/161958
Submitted by: Henning Petersen <henning.petersen@t-online.de>
Approved by: jilles
MFC after: 3 days

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.

Remove the Berkeley clause 3's.
Add a few $FreeBSD$

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

Add size_t declaration

Make gl_offs size_t too, as required by POSIX

Make non-standard gl_matchc in the similar fashion as gl_pathc size_t too,
like done in NetBSD & others

Use size_t for gl_pathc as asked in the libc's Makefile:
# If you bump SHLIB_MAJOR, see standards/55112.

PR: 55112
Reviewed by: ume

Update glob(3) to add all the POSIX required options, specifically:

- add GLOB_NOMATCH return value and use it when we don't get a match
- rename GLOB_ABEND to GLOB_ABORTED and use it instead of returning 1
in some places
- add GLOB_NOESCAPE flag and retire GLOB_QUOTE to compatibility
section

Suggestions/advice on correct usage of POSIX defines: wollman

Breath deep and take __P out of the system include files.

# This appears to not break X11, but I'm having problems compiling the
# glide part of the server with or without this patch, so I can't tell
# for sure.

Rename the GLOB_MAXPATH flag of glob(3) to GLOB_LIMIT to be compatible
with NetBSD and OpenBSD. glob(3) will now return GLOB_NOSPACE with
errno set to 0 instead of GLOB_LIMIT when we match more than `gl_matchc'
patterns. GLOB_MAXPATH has been left as an alias of GLOB_LIMIT to
maintain backwards compatibility.

Reviewed by: sheldonh, assar
Obtained from: NetBSD/OpenBSD

Introduce the GLOB_MAXPATH flag, which allows the user to limit the
number of paths which glob(3) will return. Remove the hardcoded limit
from the last commit, which restores the previous unbounded behavior.

Document the new flag in the manual page.

Removed _POSIX_SOURCE ifdefs. This is not a POSIX.1 header.

Remove trailing whitespace.

BSD 4.4 Lite Include Sources