Controller's get_ports method frequently failed to provide local ports

Oops, sometimes tor provides 127.0.0.1 for localhost and other times 0.0.0.0...

  >>> GETINFO net/listeners/or
  250-net/listeners/or="0.0.0.0:1443"
  250 OK

  >>> GETINFO net/listeners/control
  250-net/listeners/control="127.0.0.1:9051"
  250 OK