message: Don't dump the whole literal into VLOG(1)
diff: @@ -131,7 +131,7 @@ void XlaDeviceContext::CopyCPUTensorToDevice(const Tensor* cpu_tensor,
  xla::ShapeUtil::MakeShape(shape.element_type(),
  xla::AsInt64Slice(shape.dimensions())));
  - VLOG(1) << "Transfer to device as literal: " << literal.ToString() << " "
  + VLOG(2) << "Transfer to device as literal: " << literal.ToString() << " "
  << xla_tensor->shaped_buffer().ToString();
  if (UseMultipleStreams() &&
  !transfer_manager_->CanShapedBufferBeAccessedNow(
  @@ -214,7 +214,7 @@ void XlaDeviceContext::CopyDeviceTensorToCPU(const Tensor* device_tensor,
  device_to_host_stream_.get(), xla_tensor->shaped_buffer(), literal,
  [ref, xla_tensor, done](xla::Status status) {
  done([&]() -> Status {
  - VLOG(1) << "Transfer from device as literal: "
  + VLOG(2) << "Transfer from device as literal: "
  << xla_tensor->shaped_buffer().ToString();
  return status;
  }());
  