message: Remove ccf.io domain
diff: @@ -114,7 +114,7 @@ def cli_args(add=lambda x: None, parser=None, accept_unknown=False):
  parser.add_argument(
  "--domain",
  help="Domain name used for node certificate verification",
  - default="ccf.io",
  + default="example.com",
  )
  parser.add_argument(
  "--default-curve",
  