As opposed to _to{lower,upper}() i.e. the broken-by-design version.
Signed-off-by: Matteo Bruni <mbruni@codeweavers.com>
Signed-off-by: Piotr Caban <piotr@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>