ports/185723: audio/sdl_mixer: enable MIKMOD support by default again

[edwin at FreeBSD.org]

Synopsis: audio/sdl_mixer: enable MIKMOD support by default again

Responsible-Changed-From-To: freebsd-ports-bugs->mva
Responsible-Changed-By: edwin
Responsible-Changed-When: Sun Jan 12 20:30:09 UTC 2014
Responsible-Changed-Why: 
Over to maintainer (via the GNATS Auto Assign Tool)

http://www.freebsd.org/cgi/query-pr.cgi?pr=185723