Force send 'exit' on Ctrlc+C during CLI loop

[lobsterjerusalem]

Would prevent some exploits from hanging.

[terrorbyte]

Spicy take here, but I'm not sure I want that. I was mulling it over and surprise commands make me nervous and we aren't always in a position to know exit\n will do what we expect (ie like the shell being an interpreter in our OTP SSH exploit)