bug#29838: 26.0; Elisp manual: describe standard-error sexps

[Eli Zaretskii <eliz@gnu.org>]

> Date: Sun, 24 Dec 2017 10:50:16 -0800 (PST)
> From: Drew Adams <drew.adams@oracle.com>
> Cc: 29838@debbugs.gnu.org
> 
> > > Looking at the manual coverage of sequence etc. functions, you find
> > > information such as this:
> > >   (elt [1 2 3 4] -1)
> > >      error→ Args out of range: [1 2 3 4], -1
> > > But that doesn't help for understanding `(args-out-of-range 9 9)'.
> > 
> > Not sure what you want to explain and how.  The number of arguments
> > shown by the args-out-of-range error is not fixed (although in many
> > cases they are just 2), and their number and meaning are determined by
> > the calling application.  It's not something fixed that can be
> > described to match all the uses.
> 
> Please explain whatever _can_ be explained.

Sorry, I don't know how to do that in any useful way.  Maybe someone
else will have an idea.