UnboundLocalError: cannot access local variable 'used_ports' where it is not associated with a value

[taasan]

sshuttle crashes when using --listen='127.0.0.1:12200,[::1]:12200'

used_ports is initialized conditionally.

sshuttle/sshuttle/client.py

Line 925 in 8ba8dff

used_ports = []

Traceback (most recent call last):
   File "/venv/bin/sshuttle", line 8, in <module>
     sys.exit(main())
              ^^^^^^
   File "/venv/lib/python3.11/site-packages/sshuttle/cmdline.py", line 89, in main
     return_code = client.main(ipport_v6, ipport_v4,
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   File "/venv/lib/python3.11/site-packages/sshuttle/client.py", line 965, in main
     bound = True