mutt: actually exit the sync script on TERM from control script
mutt: actually exit the sync script on TERM from control script

Otherwise when we do "term" in the control script, the synx script will
just loop around again, having trapped TERM and deleted the PIDFILE,
which means we won't be able to control it any more.

wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent