ports/175142: net/rubygem-domain_name: update to version 0.5.7

[edwin at FreeBSD.org]

Synopsis: net/rubygem-domain_name: update to version 0.5.7

Responsible-Changed-From-To: freebsd-ports-bugs->ruby
Responsible-Changed-By: edwin
Responsible-Changed-When: Tue Jan 8 18:53:27 UTC 2013
Responsible-Changed-Why: 
Over to maintainer (via the GNATS Auto Assign Tool)

http://www.freebsd.org/cgi/query-pr.cgi?pr=175142