ports/179297: [patch] audio/py-mutagen update to 1.21

[edwin at FreeBSD.org]

Synopsis: [patch] audio/py-mutagen update to 1.21

Responsible-Changed-From-To: freebsd-ports-bugs->swills
Responsible-Changed-By: edwin
Responsible-Changed-When: Tue Jun 4 13:40:08 UTC 2013
Responsible-Changed-Why: 
swills@ wants this submitter's PRs (via the GNATS Auto Assign Tool)

http://www.freebsd.org/cgi/query-pr.cgi?pr=179297