regress test.

ok deraadt jsing matthew

There is no reason we couldn't reload|stop a daemon even when _flags is
set to NO.
As a bonus side effect, we can now see usage() on disabled scripts.
discussed with sthen@ and espie@
ok sthen@

stays;
ok henning

can trivially regen the <=4k bit ones.  ok djm@

ok deraadt@ robert@

prompted by deraadt@

okay ratchov@

to /dev/null.

point of view.
mostly ok sthen@ ajacoutot@, who were discussing the feng shui of the
start_daemons chunk

variants) for URLs, allowing mandoc -Thtml to properly generate links;
(sendmail.8 changes are simply using Lk, which i somehow missed in previous)
ingo reminded me to verify that gnu groff recognises %U: 1.20.1 does not,
but 1.21 does;

from robert at peichaer dot org
discussed with and ok halex@

scripts; from robert at peichaer dot org
ok halex@
While here, put the "sanitation" commands in their own block.

such).
from robert at peichaer dot org
modified after a discussion with halex@
ok halex@ robert@

from robert at peichaer dot org
ok halex@

privilege is needed to run rc_check.
In effect this means /etc/rc.d/foobar check can now be run as a regular
user.
Discussed with robert@ during g2k12.
ok todd@

signatures from observation.
ok mikeb@ jsing@ henning@ deraadt@

ok guenther@

ok deraadt@ tedu@, wording tweaks jmc@

OK espie@ kettines@

character after the '\0'; ok guenther@

ok robert@

ok robert@

three things that it needed from there: INET_ADDRSTRLEN, INET6_ADDRSTRLEN,
and struct in_addr.  Add protecting #ifndefs to netinet6?/in6?.h for those.
ok deraadt@

ok deraadt@

Add __restrict bits for tdelete()
ok deraadt@

util.h.
ok guenther

param.h symbol reduction.
ok guenther

suggested by deraadt@

Pointed out by Joachim Schipper (joachim at joachimschipper.nl)

Based on a note from Steffen Daode Nurpmeso (sdaoden at googlemail.com)
ok jmc@

ok ajacoutot@, krw@, deraadt@

initially from robert at peichaer dot org with some enhancement by halex@
ok halex@