[C (pkgs/locale)] Fix -help in Japanese UTF-8 setups

[Ville Skyttä]

COMMIT

Done.

On Wednesday 09 May 2007, Stephen J. Turnbull wrote:
> APPROVE
>
> Technically, you could use (fboundp 'char-to-unicode) or something
> like that which is specific to the Unicode support which started in
> 21.5.8 or so.  But your version test is a lot easier to understand.
>
>  > The attached patch crudely fixes it.  Unless someone objects or comes
>  > up with a better way to fix it, will apply in a couple of days.
>  >
>  > 2007-05-08  Ville Skyttä  <scop at xemacs.org>
>  >
>  > 	* start-files/ja/locale-start.el (command-line-do-help):
>  > 	Don't try to load `un-define' with XEmacs >= 21.5.