ports/166776: update net-mgmt/mrtg

[scheidell at FreeBSD.org]

Synopsis: update net-mgmt/mrtg

Responsible-Changed-From-To: freebsd-ports-bugs->scheidell
Responsible-Changed-By: scheidell
Responsible-Changed-When: Tue Apr 10 12:00:29 UTC 2012
Responsible-Changed-Why: 
I'll take it.

http://www.freebsd.org/cgi/query-pr.cgi?pr=166776