File /opt/vyatta/sbin/dhcrelay.init line 11: OUTPUT=start-stop-daemon -m --pidfile $PIDFILE -b --start --exec /usr/sbin/dhcrelay3 -- -d $ARGS 2>&1
File /usr/sbin/dhcrelay3 does not exist. Error output just says can't find PID file.
Change path to /usr/sbin/dhcrelay
Fix error handling to be more intuitive.
Same problem in /opt/vyatta/sbin/dhcv6relay.init