* This function replaces all old wfMsg* functions.
*
* @param string|string[]|MessageSpecifier $key Message key, or array of keys, or a MessageSpecifier
- * @param string[]|string[][] ...$params Normal message parameters
+ * @param string|string[] ...$params Normal message parameters
* @return Message
*
* @since 1.17
* for the first message which is non-empty. If all messages are empty then an
* instance of the first message key is returned.
*
- * @param string[] ...$keys Message keys
+ * @param string ...$keys Message keys
* @return Message
*
* @since 1.18