anchor.diff:  
       // not dartpadable if there are more than 3 files
       if (files.length > 3) {
  -      print("Skipping ${dirName}: Too many files.");
  +      print("Skipping ${printDirName}: Too many files.");
         return false;
       }
   
  
positive.code:       var path = file.path;
        return path.endsWith('index.html') || path.endsWith('main.dart') || path.endsWith('styles.css');
      })) {
        print("Skipping ${dirName}: Files can only have the name index.html/main.dart/styles.css.");
        return false;
      }
  
  
negative.code: 
      if (! new File('$dirName/pubspec.yaml').existsSync()) {
        if (verbose) {
          print('Skipping ${printDirName}: App contains no pubspec.yaml file.');
        }
        return false;
      }
  