[PATCH v2] gdiplus: Each pen dash array element must be greater than zero.

[Vincent Povirk (they/them)]

>      /* Some invalid array values. */
> +    dashes[9] = 0.0;
>      status = GdipSetPenDashArray(pen, &dashes[7], 5);
>      expect(InvalidParameter, status);
>      dashes[9] = -1.0;

Please test the result of GdipSetPenDashArray with those arguments
before changing dashes[9]. I'd like to see that we start out with
valid arguments, so we can be sure we didn't make the same mistake
again.