message: Replaced functions with arrow-functions in custom-price-format test
diff: @@ -19,9 +19,7 @@ function runTestCase(container) {
  priceFormat: {
  type: 'custom',
  minMove: 0.01,
  - formatter: function(price) {
  - return '\u0024' + price.toFixed(2);
  - },
  + formatter: (price) => '\u0024' + price.toFixed(2),
  },
  });
  