anchor.diff:  ///
   /// This script scans the flutter/shell/platform/android directory for Java
   /// files to build a `project.xml` file.  This file is then passed to the lint
  -/// tool and HTML output is reqeusted in the directory for the `--out`
  -/// parameter, which defaults to `lint_report`.
  +/// tool. If an `--html` flag is also passed in, HTML output is reqeusted in the
  +/// directory for the optional `--out` parameter, which defaults to
  +/// `lint_report`. Otherwise the output is printed to STDOUT.
   ///
   /// The `--in` parameter may be specified to force this script to scan a
   /// specific location for the engine repository, and expects to be given the
  
positive.code:         ),
        ),
      )
      ..addOption(
        'out',
        help: 'The path to write the generated the HTML report to.',
        defaultsTo: path.join(projectDir, 'lint_report'),
      )
      ..addFlag(
        'help',
        help: 'Print usage of the command.',
  
negative.code:           'in this project.',
        negatable: false,
        defaultsTo: false,
      )
      ..addFlag(
        'html',
        help: 'Creates an HTML output for this report instead of printing '
            'command line output.',
        negatable: false,
        defaultsTo: false,
      )
      ..addOption(
        'out',
        help: 'The path to write the generated the HTML report to. Ignored if '
            '--html is not also true.',
        defaultsTo: path.join(projectDir, 'lint_report'),
      );
  
    return argParser;
  