The documented flags are named differently than the script name, this
requires special handling of the flags.

The Service Jails feature requires the handling of the variable to be
differently than it was initially. The change back then did not work,
which resulted in the flags to be ignored.

This commit fixes the issue in head. This affects 15.0 and 15.1 too.

PR:		296233
Reported by:	Robert Blayzor <rblayzor@inoc.net>
Tested by:	Robert Blayzor <rblayzor@inoc.net>
Fixes:		f99f0ee14e3af81c2 - rc.d: add a service jails config to all base system services
MFC after:	1 month
MFC to:	15-stable

This gives more permissions to services (e.g. network access to
services which require this) when they are started as an automatic
service jail.

The sshd patch is important for the sshd-related functionality as
described in the man-page in the service jails part.

The location of the added env vars is supposed to allow overriding them
in rc.conf, and to hard-disable the use of svcj for some parts where it
doesn't make sense or will not work.

Only a subset of all of the services are fully tested (I'm running this
since more than a year with various services started as service jails).
The untested parts should be most of the time ok, in some edge-cases
more permissions are needed inside the service jail.
Differential Revision:	https://reviews.freebsd.org/D40371

Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/

PR#254282 reports a problem where nullfs mounts cannot be
exported via mountd for FreeBSD 13.0.

The problem seems to be that, to do the nullfs mounts in
/etc/fstab, they require the "late" mount option, so that the
underlying filesystem is mounted (ZFS for the PR).

Adding "mountlate" to the REQUIRE list in /etc/rc.d/mountd
fixes the problem, but that results in a dependency cycle
because /etc/rc.d/lockd specifies:

REQUIRE: nfsd
BEFORE: DAEMON
--> which forces mountd to preceed DAEMON.

This patch removes "nfsd" from REQUIRE for lockd and statd,
then adds mountlate to REQUIRE for mountd, to fix this
problem.  Having lockd REQUIRE nfsd was done in the NetBSD
code when it was pulled into FreeBSD and there does not
seem to be a need for this.

In case this causes problems, a long MFC has been specified.

PR:	254282
Differential Revision:	https://reviews.freebsd.org/D33256
MFC after:	3 months

The reasons for this are forward looking to pkgbase:
 * /sbin/init is a special binary; try not to replace it with
   every package update because an rc script was touched.
   (a follow-up commit will make init its own package)
 * having rc in its own place will allow more easy replacement
   of the rc framework with alternatives, such as openrc.

Discussed with:		brd (during BSDCam), kmoore
Requested by:		cem, bz
PR:			231522
Approved by:		re (gjb)