[Midnightbsd-cvs] src: rc.firewall: Add mdns entry

[laffer1 at midnightbsd.org]

Log Message:
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Add mdns entry

Modified Files:
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    src/etc:
        rc.firewall (r1.5 -> r1.6)
        (http://cvsweb.midnightbsd.org/src/etc/rc.firewall?r1=1.5&r2=1.6)