[2/2] comdlg32/tests: Fix a failing test on Win2k and below. (try 2)

[Nicolas Le Cam]

Hi,

Try 2: Changed patch title and comment from above to below, thanks Rein
and Paul for comments.

Following Rein's commit 1f825a3631c78ac08383dd6062005526fc9c483d I've
got a new failure on my Win2k box.

I did a first patch to filter Win2k failure that happens on
GetSaveFileNameW case only but, according to test.winehq.org, Win9x
boxes are failing on more cases so I did a more general (and simple)
fix.

--
Nicolas Le Cam