Fix for metafile test

[Dmitry Timoshkov]

"Ferenc Wagner" <wferi at afavant.elte.hu> wrote:

> Winrash, which invokes winetest in most of the cases, is a
> service process running on an invisible desktop.  Winetest
> itself can happily run on the real visible desktop, it's
> just people seldom run it that way (ie. directly).

Then we need either instruct people to not run the tests from
the service or completely remove that possibility altogether.

-- 
Dmitry.