[PATCH] nsi/tests: Improve the error messages.

[Huw Davies]

On Fri, Sep 03, 2021 at 11:41:53AM +0200, Francois Gouget wrote:
> Signed-off-by: Francois Gouget <fgouget at codeweavers.com>
> ---
> nsi:nsi has a bunch of random failures which I have so far been unable 
> to reproduce and the current failure messages are pretty useless, e.g. 
> "nsi.c:355: Test failed: 7: mismatch".
> https://test.winehq.org/data/patterns.html#nsi:nsi

I wonder if the "attempt" loop runs to exhaustion.

Signed-off-by: Huw Davies <huw at codeweavers.com>