redraw the border when unhiding a client window. fixes the situation where you change to a different group and the mouse isn't over a window; previously the border of the previously active window was highlighted but it didn't actually have focus.
redraw the border when unhiding a client window. fixes the situation where
you change to a different group and the mouse isn't over a window; previously
the border of the previously active window was highlighted but it didn't
actually have focus.

reads ok to oga@.

proger/cwm