Bug#819203: xinetd init script does not contain status option

[Серж ИвановЪ]

Package: xinetd
Version: 1:2.3.14-7.1+deb7u1

In debian 7, xinetd init script does not contain status option
this is mandatory for saltstack for example, it fails to get status of
service

for a fix init script should be updated with following lines:

status)
  status_of_proc -p $PIDFILE $DAEMON $NAME && exit 0 || exit $?
  ;;