fixed rename then reload for ports

[0mWh]

fixed #33

[rncbc]

33 has been already addressed at the origin GL #101 in https://github.com/rncbc/qpwgraph/commit/c693b660

please don't track on both GH and GL--the later is The Official repo.

[0mWh]

oh, i didn't see this earlier. thanks, though!