bug#41727: 26.3; Doc of `define-minor-mode' and minor-mode commands

[Drew Adams]

> > > Are you aware of `easy-mmode--arg-docstring'?
> >
> > No.  I've never looked at (or heard of) `easy-mmode'.
> 
> Isn't `define-minor-mode' defined in "easy-mmode.el"?

Yes.  I guess I meant that I haven't looked at much
in that file.

> > But now that I look at it, in Emacs 26.3, I see
> > no `easy-mmode--arg-docstring'.  What am I missing?
> 
> I guess that's one version to small.  It had been introduced when
> discussing Bug#10754.  I can send you current master's version of the
> file offlist if you want.  AFAIU it's the variable you asked for.

I have the 27 pretest, so I have (at least some version)
of `easy-mmode--arg-docstring'; thx.

Yes, that's presumably what I suggest should be changed.

And I guess where that Lisp info gets inserted could be
reconsidered.  This bug report suggests maybe putting it
at the end of the doc string.  Most calls of a minor-mode
command will be interactive.  And I'm arguing in favor of
making the Lisp description of ARG more correct/complete.
Perhaps, especially if that's done, it makes sense to
relegate such info to the end.