In particular this stops the traces in open_clipboard() and
has_no_open_wnd() from clobbering the line number when used in
expressions such as ok(has_no_open_wnd(), ...).
Signed-off-by: Francois Gouget <fgouget@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>