RE: [External] : Doc of deprecated INITIAL-INPUT arg of completing-read

[Drew Adams]

> > Suggestion:
> >
> >   Don't use this argument to insert a default value --
> >   use DEF for that.  You can use INITIAL-INPUT, for
> >   example, to insert a prefix common to all completion
> >   candidates.
> 
> Ok, thanks - I went with your version.
> 
> > 5. The doc already says that users can yank DEF with `M-n'.
> >    (Or if it doesn't then that should be said where DEF
> >    is described, not where INIT is described.
> 
> It didn't, so I added that, along with a hint mentioning
> `minibuffer-with-setup-hook'.

Great; thanks.  LGTM, and thanks for doing this.