message: Move a comment
diff: @@ -188,7 +188,9 @@ public:
  * \brief Return pointer to non-const parent Group of a Group.
  *
  * Note that if this method is called on the root Group in a
  - * DataStore, AXOM_NULLPTR is returned.
  + * DataStore, a pointer to itself is returned.
  + * This allows root->getParent()->getParent() to always work similar
  + * to how the filesystem's `cd /;cd ../..` works.
  */
  Group * getParent()
  {
  @@ -236,10 +238,6 @@ public:
  /*!
  * \brief Return true if this Group is the DataStore's root Group.
  - *
  - * The root Group's parent is itself.
  - * This allows root->getParent()->getParent() to always work similar
  - * to how the filesystem's `cd /;cd ../..` works.
  */
  bool isRoot() const
  {
  