handle SIGHUP to stop gpsd when we are stopped by an xterm
handle SIGHUP to stop gpsd when we are stopped by an xterm

wellenvogel/avnav,wellenvogel/avnav,wellenvogel/avnav,wellenvogel/avnav,wellenvogel/avnav,wellenvogel/avnav,wellenvogel/avnav,wellenvogel/avnav,wellenvogel/avnav