message: Add babel-transform-runtime to browser builds
diff: @@ -41,7 +41,12 @@ const babelNodeOptions = JSON.parse(
  fs.readFileSync(path.resolve(__dirname, '..', '.babelrc'), 'utf8')
  );
  babelNodeOptions.babelrc = false;
  -const babelEs5Options = Object.assign({}, babelNodeOptions, {presets: 'env'});
  +const babelEs5Options = Object.assign(
  + {},
  + babelNodeOptions,
  + {presets: 'env'},
  + {plugins: [...babelNodeOptions.plugins, 'transform-runtime']}
  +);
  const fixedWidth = str => {
  const WIDTH = 80;
  