message: ENH: add 'explicit' specifier in constructor
diff: @@ -206,10 +206,7 @@ public:
  * \pre blueprint::validRootGroup( group )
  * \post hasSidreGroup() == true
  */
  - UniformMesh( sidre::Group* group,
  - const std::string& topo="" );
  -
  -
  + explicit UniformMesh( sidre::Group* group, const std::string& topo="" );
  /*!
  * \brief Constructs a uniform mesh object on the specified Sidre group, that
  