[rfa] Fix 0x0x problem with memory addresses

[Keith Seitz]

On Fri, 6 Dec 2002, Andrew Cagney wrote:

> Hello,
> 
> This should stop the memory window displaying addresses as:
> 
> 	0x0x12345678
> 
> ok to commit?

Indeed! (Sheesh -- I must be getting senile... How did I ever let this bug 
go unnoticed for so long?)

Thanks!
Keith