QUESTION - SSH Channel Print Content disorder

[530017894]

when i new ishell with ssh.Channel and then use ishell.Println,the content disorder,e.g:

help

  Commands:
                       clear      clear the screen
                                                                  exit       exit the program
                                                                                                            help       display help

channel ssh.Channel

termCfg := &readline.Config{
Prompt: prompt,
Stdin: channel,
Stdout: channel,
StdinWriter: channel,
Stderr: channel,
}
shell := ishell.NewWithConfig(termCfg)

how can i fix it？