MFC r301549, r301550:
ng_mppc(4): Bring netgraph(3) MPPC compression support.

Support for compression has been available from July 2007 but it
was never imported due to concerns with patents once held by
STAC/HiFn. The issues have clearly been resolved so bring it
in now.

Special thanks to Brett Glass for preserving the code and
pointing documentation for the expiration case.

Taken from: mav (through Brett Glass)

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Updates for netgraph node manual pages.

Discussed with: glebius
Submitted by: Mamontov Roman <mr.xanto@gmail.com>

Globally replace u_int*_t from (non-contributed) man pages.

The reasoning behind this, is that if we are consistent in our
documentation about the uint*_t stuff, people will be less tempted to
write new code that uses the non-standard types.

I am not going to bump the man page dates, as these changes can be
considered style nits. The meaning of the man pages is unaffected.

MFC after: 1 month

Sort sections.

Document support for 56-bit keys.

Typo: s/Procotol/Protocol/

MFC after: 3 days

mdoc(7) police: Use the new .In macro for #include statements.

Spell "FreeBSD" with "F" and "BSD" in uppercase.

Removed whitespace at end-of-line; no content changes. I simply did
cd src/share; find man[1-9] -type f|xargs perl -pi -e 's/[ \t]+$//'

BTW, what editors are the culprits? I'm using vim and it shows
me whitespace at EOL in troff files with a thick blue block...

Reviewed by: Silence from cvs diff -b
MFC after: 7 days

mdoc(7) police: removed HISTORY info from the .Os call.

mdoc(7) police: in mdocNG, -offset and -width values without scaling
indicator are treated as strings, so "-offset 0" will set the offset
to the width of the string "0", as opposed to "no offset".

TIP: if offset is not needed, the -offset clause may be omitted.

Fixed missing include in synopsis. <sys/types.h> is still a prerequisite
for almost everything.

Update @freebsd.org email addresses to @FreeBSD.org as is the
precedent.

Change archie's and my email addresses from Whistle.com to FreeBSD.org

AUTHOR -> AUTHORS

Move netgraph node type man pages from section 8 to section 4.

Add ng_mppc(8) netgraph node as a KLD module.

Obtained from: Whistle source tree