github PortGroup and (sub)port name setting (#40831)

[Rainer Müller]

On 2013-12-26 19:25, Davide Liessi wrote:
> Dear MacPorts developers,
> can you please review this?
> 
> https://trac.macports.org/ticket/40831

I committed the change to the github port group.
http://trac.macports.org/changeset/115223

Rainer