bug#35285: 27.0.50; Bug in image--set-property; setf

[Eli Zaretskii]

> From: "Basil L. Contovounesios" <contovob@tcd.ie>
> Cc: <asjo@koldfront.dk>,  <35285@debbugs.gnu.org>
> Date: Wed, 17 Apr 2019 18:43:37 +0100
> 
> > It's okay for emacs-26, but will :scale work there without
> > Imagemagick?  Why did you need to use :scale in the tests?
> 
> Any property will do, since the test is using a mocked image spec,
> and image--set-property is not sensitive to particular properties.
> 
> In other words, I did not need to use :scale, but it will work
> regardless of Imagemagick.  Is that okay?

Yes, thanks.