ddraw/tests: Fix compilation with Visual C++ 2005.

[Francois Gouget]

On Sun, 27 May 2007, Stefan Dösinger wrote:

> > -    light.dvAttenuation0 = 0.0 / 0.0; /* NaN */
> > +    light.dvAttenuation0 = zero / zero; /* NaN */
> Are you sure the compiler doesn't optimize that away to 1.0 ?

I added a printf to see what's the value of dvAttenuation0 after the 
assignment and got the expected result in each case.

-- 
Francois Gouget <fgouget at free.fr>              http://fgouget.free.fr/
                              145 = 1! + 4! + 5!