bug#6204: vc-dir always splits the frame

[martin rudalics]

>>> If the buffer names are sufficiently regular and unique,
>>> special-display-regexps can already provide the needed
>>> customizability without any need for a new option.
>> What about cases where buffer names are not regular and unique?
>
> Don't know: where are they?

So what about the "If" in "If the buffer names are sufficiently regular
and unique"?  Could we use "Since" instead?

>> Also, I'm afraid we currently ignore the fact that most users are simple
>> not prepared to invest their time in studying the semantics of an option
>> like `special-display-regexps'.
>
> The Custom :type could be improved to make it easier to specify common
> parameters, indeed.

Did anyone (but you) ever write a `special-display-function'?

martin