Don't compare file handles to NULL

[João Eiras]

Na , Alexandre Julliard <julliard at winehq.org> escreveu:

> Francois Gouget <fgouget at free.fr> writes:
>
>> These are not false positives. Any file handle that is not
>> INVALID_HANDLE_VALUE must be closed with CloseHandle(). So these checks
>> should be against INVALID_HANDLE_VALUE, not NULL. In fact they may
>> possibly be removed altogether.
>
> Note that a valid file handle will never be NULL, so while these
> checks are wrong in theory, in practice it makes no difference.
>

Yes it does. INVALID_HANDLE_VALUE has value of -1. NULL is 0 in a x86  
architecture.