bug#12492: Acknowledgement (24.2.50; Open vc-dir buffer easier and faster)

[Juri Linkov]

>>>> +(defun vc-root-dir ()
>>>
>>> This is already defined in vc.el.
>>
>> True. The patch predated the introduction of that function.
>
> Maybe better to add interactivity to the existing function
> `vc-root-dir', i.e. to add a new arg `(&optional interactive)'
> and add `(interactive "p")'.

BTW, why vc-git-log-incoming and vc-git-log-outgoing are interactive?
It seems these functions are not intended to be used as commands:

diff --git a/lisp/vc/vc-git.el b/lisp/vc/vc-git.el
index f62e108322..6a6036cf8a 100644
--- a/lisp/vc/vc-git.el
+++ b/lisp/vc/vc-git.el
@@ -1048,7 +1050,6 @@ vc-git-print-log
                '("--")))))))
 
 (defun vc-git-log-outgoing (buffer remote-location)
-  (interactive)
   (vc-setup-buffer buffer)
   (vc-git-command
    buffer 'async nil
@@ -1062,7 +1063,6 @@ vc-git-log-outgoing
           "..HEAD")))
 
 (defun vc-git-log-incoming (buffer remote-location)
-  (interactive)
   (vc-setup-buffer buffer)
   (vc-git-command nil 0 nil "fetch")
   (vc-git-command