Message repeated in 'admin/settings/image/image_import'

When I set the image_import directory at path 'admin/settings/image/image_import', the resulting message at the top of the page looks like this:

* Your settings are configured correctly, you can import images here.
* The configuration options have been saved.
* Your settings are configured correctly, you can import images here.

The first and third messages are the same. I think somewhere drupal_set_message() was called twice with the same message. Perhaps call drupal_set_message() with the third param = FALSE to avoid having the exact same message repeated. This look a little nicer to end user.