system_authorized_init() has inconsistent documentation.

The doc block for system_authorized_init() says, in part,

/**
 * ...
 * This function sets up all the necessary $_SESSION variables, then returns
 * the full path to authorize.php so the caller can redirect to authorize.php.
 * ...
 * @return
 *   Nothing, this function just initializes variables in the user's session.

There is also a typo ("one" instead of "once") in the @callback line.

I will submit a patch as soon as I have an issue number.