staging: comedi: addi_apci_3120: tidy up analog output subdevice init

For aesthetics, add some white space to the analog output subdevice
initialization.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/drivers/addi_apci_3120.c

@@ -186,7 +186,7 @@ static int apci3120_auto_attach(struct comedi_device *dev,
 	s->do_cmd = apci3120_ai_cmd;
 	s->cancel = apci3120_cancel;
 
-	/*  Allocate and Initialise AO Subdevice Structures */
+	/* Analog Output subdevice */
 	s = &dev->subdevices[1];
 	if (this_board->has_ao) {
 		s->type		= COMEDI_SUBD_AO;