Clarify `log_daemon_msg` in Debian init.script

[jcapricebasho]

the log_daemon_msg messages, when output, are a bit difficult to read.

For example, the restart message:

log_daemon_msg "Restarting $DESC" "$NAME"

outputs: "Restarting Riak is a distributed data store riak"

The description can be left out, or added to the end like: "Restarting riak." or "Restarting riak. Riak is a distributed data store." for better readability.

[jaredmorrow]

Fixed on develop

[jaredmorrow]

New text

vagrant@precise64:~$ sudo /etc/init.d/riak restart
 * Restarting riak