'Change max recent files entries'

@Slot()
def change_max_recent_files(self):

    editorstack = self.get_current_editorstack()
    (mrf, valid) = QInputDialog.getInt(editorstack, _('Editor'), _('Maximum    number    of    recent    files'), self.get_option('max_recent_files'), 1, 35)
    if valid:
        self.set_option('max_recent_files', mrf)
