bug#50716: 28.0.50; whitespace-report does not use existing windows

[Lars Ingebrigtsen]

martin rudalics <rudalics@gmx.at> writes:

> I think this needs a new doc-string and the last two lines should
> probably become something like
>
> (let ((window (display-buffer
>              buffer
>              `((display-buffer-reuse-window
>                 display-buffer-below-selected)))))
>   (shrink-window-if-larger-than-buffer window))
>
> since the original code did not select the window and tried to show it
> below the selected one.

Thanks; pushed now to Emacs 28.

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