vhost-user: strip superfluous whitespace

Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Eugenio Perez Martin <eperezma@redhat.com>
Cc: German Maglione <gmaglione@redhat.com>
Cc: Liu Jiang <gerry@linux.alibaba.com>
Cc: Sergio Lopez Pascual <slp@redhat.com>
Cc: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Message-Id: <20230830134055.106812-2-lersek@redhat.com>
Tested-by: Albert Esteve <aesteve@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Eugenio Pérez <eperezma@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

hw/virtio/vhost-user.c

@@ -377,7 +377,7 @@ static int vhost_user_write(struct vhost_dev *dev, VhostUserMsg *msg,
      * operations such as configuring device memory mappings or issuing device
      * resets, which affect the whole device instead of individual VQs,
      * vhost-user messages should only be sent once.
-     * 
+     *
      * Devices with multiple vhost_devs are given an associated dev->vq_index
      * so per_device requests are only sent if vq_index is 0.
      */