kernel32/tests: GetVolumeInformationA X: succeeds iff drive's default dir is root. (try 2)

Hi,

what happened to this patch? It's still marked new.
Is the discovery too surprising?
(Maybe it's the wrong time to ask with AJ still on vacation)
Is it not robust enough (lacking testing with network drives)?

It explains bugs #20887 and #23355.
It may explain intermittent failures in test.winehq/kernel/volume.ok,
 as success depends on where the test was launched from.
> Tests pass on w95,w98,w2k,xp,7.

I forgot to add "without skipping the one relevant section",
 i.e. when started from another drive than C:

Of course I invite people here to also perform the test on native.

Regards,
 Jörg Höhle