Noam Postavsky <npostavs@gmail.com> writes:
> > +      set_prop (TOOL_BAR_ITEM_HELP, concat4 (orig, beg, desc, end));
>
> Instead of introducing concat4, you should be able to use
>
>     CALLN (Fconcat, orig, beg, desc, end)

That worked, thanks.  I've attached an updated patch.

Best regards,
Stefan Kangas