Part: modernize C++: return braced init list

src/Mod/Part/App/HLRBRep/HLRBRep_AlgoPyImp.cpp

@@ -61,7 +61,7 @@ int HLRBRep_AlgoPy::PyInit(PyObject* /*args*/, PyObject* /*kwds*/)
 // returns a string which represents the object e.g. when printed in python
 std::string HLRBRep_AlgoPy::representation() const
 {
-    return std::string("<HLRBRep_Algo object>");
+    return {"<HLRBRep_Algo object>"};
 }
 
 PyObject* HLRBRep_AlgoPy::add(PyObject *args)