usp10: Avoid leaking "open_stack" and "stack_index" in case of 0 "pair_count" in computeBracketPairs().
Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com>
Signed-off-by: Aric Stewart <aric@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>