On connection fail, make error message available

[oxivanisher]

If you get banned by the server, it would be nice to be able to get the error message.

Example:
$ telnet somehost 10011 Trying 1.2.3.4... Connected to somehost. Escape character is '^]'. TS3 Welcome to the TeamSpeak 3 ServerQuery interface, type "help" for a list of commands and "help <command>" for information on a specific command. error id=3329 msg=connection\sfailed,\syou\sare\sbanned extra_msg=you\smay\sretry\sin\s226\sseconds\n\rConnection closed by foreign host.