bug#32225: 27.0.50; [PATCH] avoid calling vc backend if vc-display-status is nil

[Dmitry Gutov]

On 7/27/18 10:07 AM, Eli Zaretskii wrote:
> > From: Andy Moreton <andrewjmoreton@gmail.com>
> > Date: Fri, 20 Jul 2018 17:45:09 +0100
> >
> > If the user sets `vc-display-status' to nil then the VC backend is still
> > called to get a revision number, even though it will not be displayed.
> >
> > The following patch avoids this unneeded work.
> >
> >
> > Do not call VC backend to update mode line if vc-display-status is nil
> >
> > 2018-07-20  Andy Moreton  <andrewjmoreton@gmail.com>
> >
> >         * lisp/vc/vc-hooks.el (vc-mode-line): Avoid calling VC backend if
> >         vc-display-status is nil.
>
> LGTM, please push to the master branch.

+1