[2/2] secur32/tests: Fix GetUserNameEx() tests (try 2)

[Ge van Geldorp]

Hi Paul,

> From: Paul Vriens [mailto:paul.vriens.wine at gmail.com] 
>
> I've added these to the tests to show that Windows crashes. This is thus 
> a test (although not run) for behavior. It just means that Windows 
> doesn't check the input parameters thoroughly and so we shouldn't 
> either. It was trigerred by Coverity that reported a possible 
> dereference on a NULL parameter.

Sorry, I hadn't noticed that you changed something between my initial
version of these tests and my fixes this weekend. I'll put them back. I
still don't see the difference between this and the earlier case, but I've
given up on trying to find any consistency in Wine submissions anyway.

Ge.