Print sideset names when verbose stitching

Author: roystgnr

src/mesh/unstructured_mesh.C

@@ -1940,9 +1940,13 @@ void UnstructuredMesh::stitching_helper (const MeshBase * other_mesh,
         {
           libMesh::out << "In UnstructuredMesh::stitch_meshes:\n"
                        << "This mesh has "  << this_boundary_node_ids.size()
-                       << " nodes on boundary " << this_mesh_boundary_id  << ".\n"
+                       << " nodes on boundary `"
+                       << this->get_boundary_info().get_sideset_name(this_mesh_boundary_id)
+                       << "' (" << this_mesh_boundary_id  << ").\n"
                        << "Other mesh has " << other_boundary_node_ids.size()
-                       << " nodes on boundary " << other_mesh_boundary_id << ".\n";
+                       << " nodes on boundary `"
+                       << this->get_boundary_info().get_sideset_name(other_mesh_boundary_id)
+                       << "' (" << other_mesh_boundary_id  << ").\n";
 
           if (h_min_updated)
             {