message: Properly convert a stringstream to a string.
diff: @@ -301,7 +301,7 @@ private:
  std::stringstream cur_path;
  cur_path << path << "_" << cur_dump << ".vtk";
  if ( write_vtk( m_mesh, cur_path.str() ) != 0 ) {
  - SLIC_WARNING( "Unable to write to file: " << cur_path << std::endl );
  + SLIC_WARNING( "Unable to write to file: " << cur_path.str() << std::endl );
  }
  }
  