FYI: Remove double negation error messages.

[Ralf Wildenhues]

* Jesper Louis Andersen wrote on Thu, Mar 10, 2005 at 06:56:33PM CET:
> Quoting Ralf Wildenhues (address@hidden):
> 
> > How about this patch (against HEAD, other branches similarly)?
> 
> I have no problems about the patch. I would have preferred a separate
> function to predicate if a number was positive (it is after all used a
> number of places in the code), but how to crank this out of sh(1) so it 
> is portable is beyond me at the moment (eating a character at a time and
> checking it seems reasonable, but it might be slow). 
> 
> I do like the idea of warning the user that it is not the whole space of
> positive numbers there are legal values. But we can come to a compromise,
> where the double-negation has been killed. This was after all the worst
> part of the error message.

OK.  I've applied my wording (without the `small') to all branches.

Regards,
Ralf