- Copy stable/10 (r259064) to releng/10.0 as part of the
10.0-RELEASE cycle.
- Update __FreeBSD_version [1]
- Set branch name to -RC1

[1] 10.0-CURRENT __FreeBSD_version value ended at '55', so
start releng/10.0 at '100' so the branch is started with
a value ending in zero.

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

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

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

mdoc sweep

mdoc: drop redundant .Pp and .LP calls

They have no effect when coming in pairs, or before .Bl/.Bd

- Remove MLINKS to nonexistant manpages
- Change some section numbers to match reality
- For MLINKS to manpages from ports, mention which port installs them

MFC after: 3 days

Expand contractions.

Expand *n't contractions.

Scheduled mdoc(7) sweep.

Mention pf.conf(5), pfctl(8) and pflogd(8) as ADDITIONAL READINGs.

Requested by: Chris Laverdure <dashevil sympatico ca>

Expand indirect reference to copyright file to the portion of that file
that is relevant.

Mechanically kill hard sentence breaks and double whitespaces.

Assorted markup, spelling, and grammar fixes.

Mbits -> Mbits/s
band width -> bandwidth

PR: 39822
Submitted by: Chris Pepper <pepper@rockefeller.edu>
MFC after: 3 days

Back out part of last delta that was committed by accident.
(.Xr is not yet that smart.)

mdoc(7) police: scheduled sweep.

Approved by: re

Split an excessively long sentence.

Improve wording by removing repetitive use of 'default'.

The ipfw module is only loaded if necessary.

s/then/than/ where appropriate.

rulset -> ruleset

Fix typo.

PR: docs/41091
MFC after: 1 day

ICMP type 3 packets should be let through for TCP MTU discovery, fixup
the documentation and sample firewall.

PR: docs/39495

update the firewall documentation to cover the fact that ipfw can be
loaded as a module.

PR: kern/39814

ispell sweep of share/man/man7/*.

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: eliminate warnings.

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

mdoc(7) police: remove extraneous .Pp before and/or after .Sh.

mdoc(7) police: sort SEE ALSO xrefs (sort -b -f +2 -3 +1 -2).

Add two new manual pages related to general firewall and tuning issues

Reviewed by: hackers