Fix warning about order

src/kmmainwidget.cpp

@@ -195,8 +195,8 @@ Q_GLOBAL_STATIC(KMMainWidget::PtrList, theMainWidgetList)
 //-----------------------------------------------------------------------------
 KMMainWidget::KMMainWidget(QWidget *parent, KXMLGUIClient *aGUIClient, KActionCollection *actionCollection, const KSharedConfig::Ptr &config)
     : QWidget(parent)
-    , mManageShowCollectionProperties(new ManageShowCollectionProperties(this, this))
     , mLaunchExternalComponent(new KMLaunchExternalComponent(this, this))
+    , mManageShowCollectionProperties(new ManageShowCollectionProperties(this, this))
 {
     // must be the first line of the constructor:
     mStartupDone = false;