code: function(file, errorCount, warningCount) {
          if (errorCount > 0 || warningCount > 0) {
              var message = '';
              if (errorCount > 0) {
                  message += colors.red(errorCount + ' lint ' + (errorCount === 1 ? 'error' : 'errors'));
              }
  
              if (warningCount > 0) {
                  if (errorCount > 0) {
                      message += ' and ';
                  }
                  message += colors.yellow(warningCount + ' lint ' + (warningCount === 1 ? 'warning' : 'warnings'));
              }
              message += ' found in file ' + file.path;
              log.notice(message);
          } else {
              log.info(colors.green(file.path + ' is lint free!'));
          }
      }
docs: Reporter function for linting summary.
  
  @param file File which was linted.
  @param errorCount Total count of errors in file.
  @param warningCount Total count of warnings in file.