Fix warnings occurring with gcc 4.3

[Christian Thalinger]

On Wed, 2009-02-04 at 11:45 +1000, David Holmes - Sun Microsystems
wrote:
> Xiaobin Lu said the following on 02/04/09 11:20:
> > I think the right way to fix this is to define _lineno as "int" and fix 
> > line 309 of vmError.cpp to use "%d" for _lineno instead of "SIZE_FORMAT" 
> > (which is why I thought to use size_t for _lineno). 
> 
> I agree - revert to int and %d.

I will fix this as of 6778669 if that's okay.

> I guess the compiler isn't that good at detecting problems with format 
> specifiers. It also seems to have missed this at line 423:
> 
>   st->print(",  free space=%dk",
>             ((intptr_t)fr.sp() - (intptr_t)stack_bottom) >> 10);

And this one too.

-- Christian