kernel32: set default filesystem to Fat32 rather than UnixFS

[Austin English]

This recent change, designed to prevent applications from doing NTFS
specific functions on Wine, has caused quite a few regressions in
Wine, because applications expect to see a Windows type file system
(Fat32/NTFS).

While we should eventually support NTFS (at least claim to along with
emulating those functions), fat32 is a sane default for now. It lacks
those special windows specific functions, but applications recognize
it as a 'valid' filesystem.

-- 
-Austin
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diff --git a/dlls/kernel32/volume.c b/dlls/kernel32/volume.c
index 9addeab..3d066e0 100644
--- a/dlls/kernel32/volume.c
+++ b/dlls/kernel32/volume.c
@@ -512,7 +512,6 @@ BOOL WINAPI GetVolumeInformationW( LPCWSTR root, LPWSTR label, DWORD label_len,
     static const WCHAR fatW[] = {'F','A','T',0};
     static const WCHAR fat32W[] = {'F','A','T','3','2',0};
     static const WCHAR cdfsW[] = {'C','D','F','S',0};
-    static const WCHAR unixfsW[] = {'U','N','I','X','F','S',0};
 
     WCHAR device[] = {'\\','\\','.','\\','A',':',0};
     HANDLE handle;
@@ -613,7 +612,7 @@ fill_fs_info:  /* now fill in the information that depends on the file system ty
         if (flags) *flags = FILE_CASE_PRESERVED_NAMES;  /* FIXME */
         break;
     default:
-        if (fsname) lstrcpynW( fsname, unixfsW, fsname_len );
+        if (fsname) lstrcpynW( fsname, fat32W, fsname_len );
         if (filename_len) *filename_len = 255;
         if (flags) *flags = FILE_CASE_PRESERVED_NAMES;
         break;