[2/3] msi/tests: Skip a test if the process is limited.

[Hans Leidekker]

On Wed, 2011-08-24 at 15:11 +0200, Francois Gouget wrote:

> From my understanding, in this case using a simple skip() means that 
> anyone running WineTest on Windows in a non-administrator account will 
> get a test failure. Since we don't seem to have a policy mandating that 

Quite the opposite, running it as a regular user causes a test failure
now, my patch avoids that.