Authentication failure because sanitisedCfg

[lang07123]

the config's password is changed when you change the sanitisedCfg's password.
so stream.Handshake always take a wrong password.

	sanitisedCfg := config
	sanitisedCfg.Parameters["password"] = "********"
	logrus.Debugf("Starting handshake with %#v", config)
	err = stream.Handshake(config)

[groggy7]

I ran into the same issue as well. It doesn't make sense to change the password to some asterisks to protect it