Since r233109, kldload has the -n option, which silently ignores options
that are already loaded.
https://lists.freebsd.org/pipermail/freebsd-rc/2018-December/003899.html
Note that this script no longer reports if the module is already loaded,
but it could be argued this wasn't particularly useful information.
PR: docs/234248
Reviewed by: bcr (docs), kib, rgrimes (visual)
Approved by: jilles
Differential Revision: https://reviews.freebsd.org/D18670
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)
