K 10
svn:author
V 3
0mp
K 8
svn:date
V 27
2018-11-07T16:56:32.206590Z
K 7
svn:log
V 515
rc.subr(8): Document when required_* variables are processed

At the moment rc.subr(8) supports the following required_* variables:
required_dirs, required_files, required_modules and required_vars.

This patch documents when every of those required_* variables is actually
processed (before or after running start_precmd).

Reviewed by:	bcr
Approved by:	krion (mentor, implicit), mat (mentor, implicit)
Sponsored by:	Bally Wulff Games & Entertainment GmbH
Differential Revision:	https://reviews.freebsd.org/D17895

END