Forum:Changing Chat leaving message

Another admin and I have talked about changing the message that apears on chat when a user leaves. We've seen it done on other wikis, and have a specialized message that appears when a user enters, but we don't know how to change the message that appears when a user leaves. Does anyone know how to personalize this? 22:36, February 11, 2012 (UTC)


 * MediaWiki:Chat-user-left--