bug#62029: 29.0.60; Allow users to customize eldoc buffer separator

[Dmitry Gutov]

On 14/04/2023 00:53, Dmitry Gutov wrote:
> > Is this concept of "bouncing" acceptable to you in elisp-mode?  Do you
> > think it will ever be accepted by other Emacs lisp developers that
> > sometimes, when standing over a symbol with both a function and variable
> > definition the two things will be documented in two separate lines?  I
> > assume it won't, thus the Elisp setting of
> > eldoc-echo-area-use-multiline-p to 1.
>
> I suggest you put it up for the discussion on emacs-devel after we 
> ensure that the flickering and bouncing situation has improved.

E.g. personally, I would perhaps prefer it there was a failover from 
elisp-eldoc-funcall to elisp-eldoc-var-docstring, but that was composed 
in parallel with flymake-eldoc-function, to also show the compilation 
error when available. But that doesn't seem like it is provided by any 
of the existing options.