Use informative message for commit

If you look at the project log http://drupal.org/node/1255442/commits it's not very informative.

Instead of
http://drupal.org/node/1467940

It will be more useful to write
#1467940 Use theme name instead of $theme_key to find theme path

Tips: adding a reference to the bugs is nice but you can simply write #1467940 instead http://drupal.org/node/1467940 and drupal.org will turn it in a link.

Thanks