Re: 23.0.50; latest change to blackbox.el breaks the game

[martin rudalics]

> The following change in revision 1.26 of blackbox.el causes breakage:
>
> ,----
> | 2007-10-21  Dan Nicolaescu  <address@hidden>
> | 
> | 	* play/blackbox.el (bb-up, bb-down): Use forward-line.
> `----
>
> After this change, bb-up and bb-down move to the beginning of the line,
> no matter where point was before.  That renders blackbox pretty much
> unplayable. :-(

I've checked in a fix, please retry.