shairport-sync creates its pidfile at /var/run/shairport-sync/, so pass
that path to start-stop-daemon in the stop operation.
Also pass the executable path, allowing start-stop-daemon to check if
the PID matches the shairport-sync process, preventing killing some
other inocent daemon.
Fixes:
https://bugs.busybox.net/show_bug.cgi?id=11566
Reported-by: Bin Zhang <yangtze31@gmail.com>
Signed-off-by: Carlos Santos <casantos@datacom.com.br>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
6568b93929