code: def getShutdownArgs(self):
          
          shutdownArgs = []
          if self.host:
              shutdownArgs += ['-h', self.host]
          if self.bcport:
              shutdownArgs += ['-p', self.bcport]
          if self.bcaddr:
              shutdownArgs += ['-c', self.bcaddr]
          if self.identification:
              shutdownArgs += ['-i', self.identification]
  
          return shutdownArgs
docs: return command line arguments for shutting down the
          server; this command line is built from the name server
          startup arguments.