test: fixing test failure after merge.

Author: MSLaguana

Diff for: test/parallel/test-internal-util-decorate-error-stack.js

@@ -1,6 +1,6 @@
 // Flags: --expose_internals
 'use strict';
-require('../common');
+const common = require('../common');
 const fixtures = require('../common/fixtures');
 const assert = require('assert');
 const internalUtil = require('internal/util');