message: expand comment on dof order convenience function
diff: @@ -53,8 +53,12 @@ public:
  virtual int DofForGeometry(Geometry::Type GeomType) const = 0;
  - /** @brief Returns an array, say p, that maps a local permuted index i to
  - a local base index: base_i = p[i]. */
  + /** @brief Returns an array, say p, that maps a local permuted index i to a
  + local base index: base_i = p[i].
  +
  + @note Only provides information about interior dofs. See
  + FiniteElementCollection::SubDofOrder if interior \a and boundary dof
  + order is needed. */
  virtual const int *DofOrderForOrientation(Geometry::Type GeomType,
  int Or) const = 0;
  