Fixed: 'Could not restart Service' error.

Without this fix, attempting to restart a supervisor service on Ubuntu 12.04 would result in a "Could not restart Service" error, even that the restart was in fact successful. The `\n` in the grep pattern was being actualised by puppet, rather than being made a part of the regex.

This fix makes the `\n` part of the stopped … started regex.

Refs #38.