ensure labels are writed in quantify tag

src/output/masschroqml.cpp

@@ -273,8 +273,7 @@ MassChroQml::writeQuantify()
   if(p_labeling_method != nullptr)
     {
       QStringList isotope_label_ref;
-      for(const Label *p_label :
-          p_labeling_method->getLabelList())
+      for(const Label *p_label : p_labeling_method->getLabelList())
         {
           isotope_label_ref << p_label->getXmlId();
         }