anchor.diff:  
   void _changeMode({bool useTestMode: true}) {
     File file = joinFile(Directory.current, ['app', 'app.json']);
  -  file.writeAsStringSync('{"test-mode":${useTestMode}}');
  +  file.writeAsStringSync('{"test-mode":${useTestMode}}\n');
   
     file = joinFile(BUILD_DIR, ['deploy', 'web', 'app.json']);
     if (file.parent.existsSync()) {
  -    file.writeAsStringSync('{"test-mode":${useTestMode}}');
  +    file.writeAsStringSync('{"test-mode":${useTestMode}}\n');
     }
   
     file = joinFile(BUILD_DIR, ['deploy-out', 'web', 'app.json']);
     if (file.parent.existsSync()) {
  -    file.writeAsStringSync('{"test-mode":${useTestMode}}');
  +    file.writeAsStringSync('{"test-mode":${useTestMode}}\n');
     }
   }
   
  
positive.code:   defineTask('lint', taskFunction: lint, depends: ['setup']);
  
    defineTask('deploy', taskFunction: deploy, depends: ['lint']);
    //defineTask('dartium', taskFunction: deployForDartium, depends: ['lint']);
  
    defineTask('docs', taskFunction: docs, depends : ['setup']);
    defineTask('stats', taskFunction: stats);
  
negative.code: import 'webstore_client.dart';
  
  final NumberFormat _NF = new NumberFormat.decimalPattern();
  
  final Directory BUILD_DIR = new Directory('build');
  final Directory DIST_DIR = new Directory('dist');
  