[ros-diffs] [jmorlan] 34613: In ConioConsoleCtrlEvent, don't wait for the thread to terminate; a misbehaving handler could hang CSRSS indefinitely that way. Testing on Windows shows that no waiting is done when Ctrl-C is pressed; however, there is a wait of up to 5 seconds when attempting to close the window, so add a comment in GuiConsoleHandleClose mentioning this.