bug#6204: vc-dir always splits the frame

[Juri Linkov]

>> This is a legitimate way for an application to define
>> its default behavior.  Look for example at:
>> ;;;###autoload (add-hook 'same-window-regexps "\\*info\\*\\(\\|<[0-9]+>\\)")
>
> This is exactly the kind of evil I don't want: such variables should
> only ever be modified by the user.

I see what you mean.  An application does what its author wants to do
by default without touching user customizable variables, but the user
should be able to override that with `special-display-regexps' like

  ("*vc-dir*" . other-window)
  ("*vc-diff*" . same-window)
  ("*info*" . lru)
  ...

-- 
Juri Linkov
http://www.jurta.org/emacs/