[PATCH] bsdinstaller: use one rc.conf comment for multiple vars. previous patch included.

[Denis Peplin]

Hello!

Please, look at
http://people.freebsd.org/~den/bsdinstaller/09092004.diff
This patch is for writing multiple rc.conf strings with
one comment. It include previous fix to write keymaps,
screenmaps and fonts w/o dirname and extensions.
Tested, but only from "LiveCD Environment" menu.

Can anybody test, review and commit this?