On Tue, 2023-10-10 at 18:21 +0200, Andreas Schwab wrote:
> On Okt 10 2023, lux wrote:
> 
> > +        ;; see Bug#66390
> > +	(mapconcat 'identity
> > +                   (mapcar #'shell-quote-argument
> > +                           (split-string ref " "))
> 
> You need to split on arbitrary sequences of whitespace to not introduce
> spurious empty arguments.
> 

Thanks, I've modified it to (split-string ref "\\s-+").