Not suport IPV6 rdp_check.py

[CptGuo]

Configuration

impacket version: v0.9.22
Python version: 3
Target OS: Ubuntu16

rdp_check Can't use ipv6 address

Debug Output With Command String

Traceback (most recent call last):
File "rdpcheck", line 576, in
check_rdp(address, username, password, domain, options.hashes)
File "rdpcheck", line 381, in check_rdp
s.connect((host,3389))
socket.gaierror: [Errno -9] Address family for hostname not supported

[anadrianmanrique]

linked with #1811