Function prettyPrintUrl

packages/react-dev-utils/WebpackDevServerUtils.js:32–38

      pathname,
    });
  const prettyPrintUrl = hostname =>
    url.format({
      protocol,
      hostname,
      port: chalk.bold(port),
      pathname,
    });

  const isUnspecifiedHost = host === '0.0.0.0' || host === '::';
  let prettyHost, lanUrlForConfig, lanUrlForTerminal;