code: func (client *Client) EditComment(id int, handle, message string) error {
  	comment := Comment{Message: String(message)}
  	if len(handle) > 0 {
  		comment.Handle = String(handle)
  	}
  	return client.doJsonRequest("PUT", fmt.Sprintf("/v1/comments/%d", id),
  		&comment, nil)
  }
docs: // EditComment changes the message and possibly handle of a particular comment.