anchor.diff:   *
    *     main() {
    *        var options = parseOptions();
  - *        lint().then(() {
  + *        lint().then((_) {
    *          if (options.forceDeploy) deploy();
    *        });
    *     }
  
positive.code: 
  
  /**
   * Runs the polymer linter on any relevant file in your package, 
   * such as any .html file under 'lib/', 'asset/', and 'web/'.
   *
   * The [entryPoints] list contains files under web/ that should be treated as
   * entry points. Each entry on this list is a relative path from the package
   * root (for example 'web/index.html'). If null, all files under 'web/' are
   * treated as possible entry points. 
   *
   * Options are read from the command line arguments, but you can override them
   * passing the [options] argument.
  
negative.code: 
  /**
   * Common logic to make it easy to run the polymer linter and deploy tool.
   *
   * The functions in this library are designed to make it easier to create
   * `build.dart` files. A `build.dart` file is a Dart script that can be invoked
   * from the command line, but that can also invoked automatically by the Dart
  