ports/171768: [UPDATE] devel/libffi: update to 3.0.11

[linimon at FreeBSD.org]

Synopsis: [UPDATE] devel/libffi: update to 3.0.11

Responsible-Changed-From-To: gnats-admin->freebsd-ports-bugs
Responsible-Changed-By: linimon
Responsible-Changed-When: Sat Oct 6 18:54:02 UTC 2012
Responsible-Changed-Why: 
rescue from misformatting and note maintainer approval.

http://www.freebsd.org/cgi/query-pr.cgi?pr=171768