Fixed always unexistent group when syncing with system group

source/ubl-settings-usergroups.c

@@ -2898,7 +2898,7 @@ void on_user_sync_with_config(GtkWidget *,main_window *widgets){
 				char *target;
 				gtk_tree_model_get(model,&iter,1,&target,-1);
 				dialog_confirmation_data data;
-				if (config(USERADD(target))){
+				if (config(GROUPADD(target))){
 					data.action_text = SYSTEM_GROUP_ADD_CONFIRMATION_LABEL(target);
 					data.data=NULL;
 					data.function=NULL;