crtimes discrepancy on PPC

[Wayne Davison]

On Mon, Sep 29, 2008 at 02:47:53PM -0700, Wayne Davison wrote:
> reordering the args in the ifs so that an underflow can't trigger a
> spurious successful test.

Actually, my change isn't good enough, since an underflow with the "if"
vars reordered should actually indicate a match.  So, my patch would
need another compare to test for underflow.  Your patch also needs an
extra compare in the file1 >= file2 case:

        if (file1 - file2 <= modify_window && file1 - file2 >= 0)

I guess I'll think about this more later.  

..wayne..