Remove $FreeBSD$: one-line sh pattern

Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/

pkgbase: Really move rc.bsdextended

Messed up with git->svn in r348099

Clean up, comment out non-base utilities, fix up comments.

Prodded by: hrs

Give users the ability to load a mac_bsdextended(4) ruleset on boot (defaults
to NO of course). Provide a basic ruleset file, rc.bsdextended, but allow
the filename to be overridden through rc.conf.

Give users the ability to load a mac_bsdextended(4) ruleset on boot (defaults
to NO of course). Provide a basic ruleset file, rc.bsdextended, but allow
the filename to be overridden through rc.conf.

Discussed with: rwatson (awhile ago)

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