chkconfig missing? and some rc.conf questions/suggestions

[Bob Bagwill <bob@xxxxxxxxxxxxxxx>]

1) Is there any particular reason DBSD doesn't have a chkconfig script,
like NetBSD?
2) How about having a copy of the relevant /etc/rc.d/foo script in
/usr/src/usr.sbin/foo/, to keep related code together?
3) Would it be possible to establish some conventions so that rc.conf(5)
could be generated automatically?
4) How do new entries get in /etc/defaults/rc.conf?
5) How come it's enable_quotas instead of quotas_enable?