xwm: Fix input regions
commit 0f99e081 broke xwayland client input regions. The xwayland window manager sets input regions in the pending state without going through the function that sets the WESTON_SURFACE_DIRTY_INPUT bit.
Just add the dirty bit to the xwm code.
Also, fix the whitespace error the same patch introduced.
fixes 0f99e081
Signed-off-by: Derek Foreman derek.foreman@collabora.com