If you send a non-urgent terminate signal (HUP, TERM, etc) to Pan, it does
not clean up and terminate any active connections tidyly.  It would be nice
if it would close down the connection to the news server in an orderly
fashion.  Specifically, my news server is limited to two simultaneous
connections and after having to kill Pan (typically to switch controlling
machine), it refuses connections from me until the previous two TCP/IP
connections time out.  If Pan were to perform closedown negotiations before
quiting on a non-urgent signal, it would not be necessary to wait for this
timeout.