[ODE] dRandInt Crash Fix

[Jon Watte (ODE)]

> You're right, dRandInt uses the formula from Numerical Recipes book. But I
> think it uses it correctly, I don't see the error and still don't see how
> integer greater than n-1 could have come out of it ...

If the floating point precision mode were set to 23 bits, such as it 
would be at times if using DirectX (or certain other libraries), then 
that could happen, even for doubles.

Cheers,

		/ h+