literal name_enable wherever possible, and ${name}_enable
when it's not, to prepare for the demise of set_rcvar().
In cases where I had to hand-edit unusual instances also
modify formatting slightly to be more uniform (and in
some cases, correct). This includes adding some $FreeBSD$
tags, and most importantly moving rcvar= to right after
name= so it's clear that one is derived from the other.
my ports in the past 3 weeks while ports were broken on any 10.x
machines, which means I'm unable to maintain them. So let people know
that there's no available support for them until things are back to
normal (which also means that anyone with spare time will be able
to fix them without getting approval).
