message: fix the command line interface main option
diff: @@ -65,7 +65,7 @@ fn main() {
  cfg2.to_file(&cfg_path);
  };
  },
  - ("network", Some(sub_matches)) => { Network::run(cfg, sub_matches); },
  + ("network", Some(sub_matches)) => { Network::run((), sub_matches); },
  ("block", Some(sub_matches)) => { Block::run(cfg, sub_matches); },
  _ => {
  println!("{}", matches.usage());
  