logstash.sh script (Running with init cookbook) missing $delay parameter value

Hi,

Using logstash on a RHEL 6.4 host, In the logstash.sh script do_stop() function, there's the line:
checkpid $pid && sleep $delay &&

but $delay is not defined and we get:

sleep: missing operand
Try `sleep --help' for more information.

You can check the killproc function in /etc/init.d/functions as an example.
