/**
* Since wfMsg() and co suck, they don't return false if the message key they
- * looked up didn't exist but a XHTML string, this function checks for the
+ * looked up didn't exist but instead the key wrapped in <>'s, this function checks for the
* nonexistence of messages by checking the MessageCache::get() result directly.
*
* @deprecated since 1.18. Use Message::isDisabled().