message: Fix according to code review.
  Referance: [https://github.com/tensorflow/tensorflow/pull/25347#discussion_r].
diff: @@ -3675,7 +3675,7 @@ bool CudnnSupport::DoTransformTensor(Stream* stream,
  CudnnTensorDescriptor output_tensor_desc(
  output_desc, ToCudnnDataType(output_type, output_desc.layout()));
  auto cudnn = cudnn_->GetHandle(parent_, stream);
  - auto const status = [&] {
  + const auto status = [&] {
  RETURN_IF_CUDNN_ERROR(cudnnTransformTensor(
  cudnn.handle(), &scale, input_tensor_desc.handle(), input_data.opaque(),
  &beta, output_tensor_desc.handle(), output_data->opaque()));
  