Only the highest and lowest bits in the return values of these functions
have a meaning, the others are undefined. While the other bits are
always cleared in Windows, wine stores information there. Some programs
expect these undefined bits to be zero, though, so make sure they are
not set.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=30814Signed-off-by: Markus Engel <markus_wine@familie-engel.online>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>