On Thu, 31 Aug 2017 14:34:21 +0200
ludo@gnu.org (Ludovic Courtès) wrote:

> Christopher Baines <mail@cbaines.net> skribis:
> 
> > * ...  
> 
> Fill in the dots.  :-)
> 
> With a few lines in the manual it would be perfect!

This should be done. I think I've updated the commit message, and added
some documentation to the manual.