Saves the files for this menu to the settings.
        
        :param      settings | <QSettings>

def saveSettings(self, settings):
        """
        Saves the files for this menu to the settings.
        
        :param      settings | <QSettings>
        """
        value = wrapVariant(os.path.pathsep.join(self.filenames()))
        settings.setValue('recent_files', value)