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:   await projectXml.close();
  
    print('Wrote project.xml, starting lint...');
    final Process lintProcess = await processManager.start(
      <String>[
        path.join(androidSdkDir.path, 'tools', 'bin', 'lint'),
        '--project',
        projectXmlPath,
        '--html',
        argResults['out'],
        '--showall',
        '--exitcode', // Set non-zero exit code on errors
        '-Wall',
        '-Werror',
        '--baseline',
        baselineXmlPath,
      ],
    );
    lintProcess.stdout.pipe(stdout);
    lintProcess.stderr.pipe(stderr);
    return await lintProcess.exitCode;
  
negative.code:         ),
        ),
      )
      ..addFlag(
        'help',
        help: 'Print usage of the command.',
  