message: refactored code for reviewer's comment
diff: @@ -365,12 +365,12 @@ class MklConcatOp : public OpKernel {
  mkl_common_format);
  } else if (dst_dims.size() == 2 &&
  mkl_common_format == memory::format::nc) {
  - // When memory::format::nc, dst_dims are already in MKLDNN order
  + // When memory::format::nc, dst_dims are already in MKL-DNN order
  dst_md = memory::desc(dst_dims, MklDnnType<T>(), mkl_common_format);
  } else {
  TF_CHECK_OK(Status(error::Code::FAILED_PRECONDITION,
  "Unsupported tensor dimension or"
  - "MKLDNN memory format"));
  + "MKL-DNN memory format"));
  }
  } else {
  // All inputs are TF tensors.
  @@ -420,8 +420,7 @@ class MklConcatOp : public OpKernel {
  dnn_shape_dst);
  DCHECK(dst_tensor == nullptr) << "Output tensor pointer is NULL";
  - dst_md =
  - dnn_shape_dst.IsMklTensor() ? dnn_shape_dst.GetMklLayout() : dst_md;
  + if (dnn_shape_dst.IsMklTensor()) dst_md = dnn_shape_dst.GetMklLayout();
  dst.SetUsrMem(dst_md, dst_tensor);
  auto concat_op = concat(concat_pd, inputs, dst.GetOpMem());
  