Fix warnings in unwind-d2.c

[Richard Henderson]

On Sun, Oct 26, 2003 at 03:53:55PM +0100, Andreas Jaeger wrote:
> 	* unwind-dw2.c (_Unwind_GetGR): Avoid warning about unsigned
> 	comparison.
> 	(_Unwind_SetGR): Likewise.

Ok.


r~