hwmon: (vt8231) Add missing "space"

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>

drivers/hwmon/vt8231.c

@@ -504,7 +504,7 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
 	case 4: data->fan_div[nr] = 2; break;
 	case 8: data->fan_div[nr] = 3; break;
 	default:
-		dev_err(dev, "fan_div value %ld not supported."
+		dev_err(dev, "fan_div value %ld not supported. "
 		        "Choose one of 1, 2, 4 or 8!\n", val);
 		mutex_unlock(&data->update_lock);
 		return -EINVAL;