Send /quit to out-of-process GUI on cleanup, remove unnecessary printf.
Send /quit to out-of-process GUI on cleanup, remove unnecessary printf.

jnetterf/calf,adiknoth/calf,jnetterf/calf,zamaudio/calf-LR4,jnetterf/calf,jnetterf/calf,zamaudio/calf-LR4,adiknoth/calf,jnetterf/calf,adiknoth/calf,adiknoth/calf,adiknoth/calf,zamaudio/calf-LR4,zamaudio/calf-LR4,zamaudio/calf-LR4