staging: comedi: usbduxfast: fix multi-line comment

This comment does not need to be multi-line. Fix it to remove the
checkpatch warning.
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/usbduxfast.c

@@ -159,8 +159,7 @@ struct usbduxfast_private {
 	u8 *duxbuf;
 	s8 *inbuf;
 	short int ai_cmd_running;	/* asynchronous command is running */
-	int ignore;		/* counter which ignores the first
-				   buffers */
+	int ignore;		/* counter which ignores the first buffers */
 	struct semaphore sem;
 };