qt5 refactoring ...

src/gui/qt/startnetworkgamedialog/startnetworkgamedialogimpl.cpp

@@ -62,10 +62,9 @@ startNetworkGameDialogImpl::startNetworkGameDialogImpl(startWindowImpl *parent,
 	clearDialog();
 }
 
-void startNetworkGameDialogImpl::exec()
+int startNetworkGameDialogImpl::exec()
 {
-
-	QDialog::exec();
+	return QDialog::exec();
 }
 
 void startNetworkGameDialogImpl::startGame()

src/gui/qt/startnetworkgamedialog/startnetworkgamedialogimpl.h

@@ -92,7 +92,7 @@ public slots:
 		return maxPlayerNumber;
 	}
 
-	void exec();
+	int exec();
 
 private: