rcvar function in rc.subr

[Alexander Botero-Lowry]

> 
> Not sure what you're thinking about. But if it's wrong, it must be
> fixed. If this chkconfig clone uses rcvar command output redirected to
> rc.conf, it's likely to do 's/^\$//' and it won't break anything.
That's assuming it uses sed to deal with the issue, if it's intended
to reside in /sbin it would try to not use anything in /usr, so no sed.

Alex