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.

Don't define static_assert for C++.

Even though _Static_assert() is pretty robust for C code, it cannot work
correctly with C++ code. This is due to the fact that C++ template
parameters may contain commas that are not enclosed in parentheses. For
example:

static_assert(foo<int, int>::bar == baz, "...");

This causes _Static_assert to be called with an excessive number of
parameters. If you want to use static_assert in C++, just use a C++11
compiler.

Reported on: current@, ports@

As per C11, add static_assert() to <assert.h>.

Add missing __dead2 to __assert().

__assert() is called when an assertion fails. After printing an error
message, it will call abort(). abort() never returns, hence it has the
__dead2 attribute. Also add this attribute to __assert().

MFC after: 3 weeks

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.

Only protect the prototypes with #ifndef _ASSERT_H_, the standards
specifically allow changes to the NDEBUG macro between #includes of assert.h

Add missing #ifndef _ASSERT_H_ protection against multiple inclusions

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.

Restore K&R prototype. Fix other style bugs.

Reviewed by: asmodai, bde

Add $FreeBSD$.
Change assert() macro to print failing function name.
Change K&R function prototype wrapper to ANSI prototype.
This makes us C99 conforming.

BSD 4.4 Lite Include Sources