Re: Improved help from minibuffer prompts

[Richard Stallman]

    The doc string is supposed to describe the arguments, so it is more
    useful than no help.

That is true--but its description of the arguments is often not
very helpful for a situation like this.

Here is a new idea.  We can develop a convention for delimiting, in
the doc string, the help about each argument.  Then the help facility
for entering an argument could look thru the doc string for the part
that refers to the current argument.