Code review comment for lp:~gary/launchpad/bug662912

Thank you for the review and comments.

Robert approved the librarian change on IRC.

I looked at the addSystemEventTrigger approach. The behavior is identical to the callWhenRunning version. It's a bit longer spelling, but I guess it is a bit easier to understand the intent. That's a compelling argument, so I made the change.

Thanks again,

Gary