Traceback (most recent call last):
  File "/usr/lib/mate-applets/mate-dock-applet/dock.py", line 1097, in window_opened
    got_desktop = dock_app.setup_from_wnck(wnck_app, wnck_class)
  File "/usr/lib/mate-applets/mate-dock-applet/docked_app.py", line 408, in setup_from_wnck
    self.get_cmdline_from_pid(new_app_info.pid)
  File "/usr/lib/mate-applets/mate-dock-applet/docked_app.py", line 455, in get_cmdline_from_pid
    if line is not None:
UnboundLocalError: local variable 'line' referenced before assignment