Fixed broken Grid test.
Fixed broken Grid test.

It wasn't changed to take into account the new plug default values when we turned on GL line smoothing.

davidsminor/gaffer,ImageEngine/gaffer,boberfly/gaffer,appleseedhq/gaffer,davidsminor/gaffer,cedriclaunay/gaffer,andrewkaufman/gaffer,GafferHQ/gaffer,appleseedhq/gaffer,ImageEngine/gaffer,ivanimanishi/gaffer,lucienfostier/gaffer,goddardl/gaffer,goddardl/gaffer,johnhaddon/gaffer,andrewkaufman/gaffer,boberfly/gaffer,andrewkaufman/gaffer,appleseedhq/gaffer,ImageEngine/gaffer,andrewkaufman/gaffer,boberfly/gaffer,lucienfostier/gaffer,boberfly/gaffer,chippey/gaffer,hradec/gaffer,johnhaddon/gaffer,GafferHQ/gaffer,hradec/gaffer,appleseedhq/gaffer,lucienfostier/gaffer,davidsminor/gaffer,lucienfostier/gaffer,GafferHQ/gaffer,GafferHQ/gaffer,GafferHQ/gaffer,andrewkaufman/gaffer,goddardl/gaffer,cedriclaunay/gaffer,chippey/gaffer,chippey/gaffer,cedriclaunay/gaffer,ivanimanishi/gaffer,johnhaddon/gaffer,cedriclaunay/gaffer,chippey/gaffer,hradec/gaffer,johnhaddon/gaffer,goddardl/gaffer,hradec/gaffer,ivanimanishi/gaffer,davidsminor/gaffer,johnhaddon/gaffer,ivanimanishi/gaffer,hradec/gaffer,ImageEngine/gaffer