message: Use 'mfem::out' instead of 'std::cout' -- even though the code is
  in a comment, this triggered a check that we should not use
  'std::cout' directly in mfem.
diff: @@ -853,7 +853,7 @@ void NCMesh::RefineElement(int elem, char ref_type)
  return;
  }
  - /*std::cout << "Refining element " << elem << " ("
  + /*mfem::out << "Refining element " << elem << " ("
  << el.node[0] << ", " << el.node[1] << ", "
  << el.node[2] << ", " << el.node[3] << ", "
  << el.node[4] << ", " << el.node[5] << ", "
  