ports/177206: [patch] graphics/optipng: update to 0.7.4 and fix CVE-2012-4432

[linimon at FreeBSD.org]

Synopsis: [patch] graphics/optipng: update to 0.7.4 and fix CVE-2012-4432

State-Changed-From-To: feedback->open
State-Changed-By: linimon
State-Changed-When: Wed Apr 17 21:06:18 UTC 2013
State-Changed-Why: 
Maintainer approved.

http://www.freebsd.org/cgi/query-pr.cgi?pr=177206