Incorrect reference image for ogl-samples test gl-320-fbo-layered

[itoral]

There is this bug in Mesa referring to ogl-samples test gl-320-fbo-layered:
https://bugs.freedesktop.org/show_bug.cgi?id=76397

The linked reference image with the expected test result [1] is
wrong. Borders should be white, not black.

[1] https://github.com/g-truc/ogl-samples/blob/master/data/templates/reference/gl-320-fbo-layered.png

[Groovounet]

This issue is fixed in 4.4.2 branch.

Thanks for contributing,
Christophe