No error/warning for incorrect password.

[MichaelDesantis]

• code-server version: 1.31.0
• OS Version: Mac OS 10.13.6

Steps to Reproduce

1. Build binary
2. Run binary
3. Enter incorrect password

Expected:
Some kind of message saying "password is incorrect"

Actual:
¯\(ツ)/¯

[MichaelDesantis]

I can take this one. I've already made mention of it in #51

[MichaelDesantis]

UPDATE: PR is here #201