message: Fix a comment about device/op_device.
diff: @@ -21,11 +21,11 @@ message RemoteTensorHandle {
  int64 op_id = 1;
  // The index into the outputs of the operation that produced this tensor.
  int32 output_num = 2;
  - // Device of the operation that produced this tensor. Cannot be empty.
  + // Device where the tensor is located. Cannot be empty.
  // For multi-device functions, it's the default device passed to placer.
  string device = 3;
  - // Device where the tensor is located. Can be empty if the operation producing
  - // this tensor is a multi-device function.
  + // Device of the operation producing this tensor. Can be empty if the
  + // operation producing this tensor is a multi-device function.
  string op_device = 4;
  // Tensor type.
  DataType dtype = 5;
  