fix Warning

qt6-after/qt6-migrated-legatus/Lts/Services/InfrastructureManagement/parse_building_xml.cpp

@@ -332,10 +332,9 @@ QDomDocument ParseBuildingXml::openXml(const QString &fileName) const
 
   // read Xml file
   QDomDocument metaDoc;
-  int errLine = 0, errColumn = 0;
-  QString err;
-  if (!metaDoc.setContent(&f, &err, &errLine, &errColumn))
-    throw XmlImportException(tr("Error parsing file content: %1 at %2.%3").arg(err).arg(errLine).arg(errColumn));
+  const auto parseResult = metaDoc.setContent(&f);
+  if (!parseResult)
+    throw XmlImportException(tr("Error parsing file content: %1 at %2.%3").arg(parseResult.errorMessage).arg(int(parseResult.errorLine)).arg(int(parseResult.errorColumn)));
 
   // close metaFile
   f.close();