Update doc/api/util.md

Co-authored-by: Antoine du Hamel <duhamelantoine1995@gmail.com>
nodejs · nodejs-github-bot · Feb 7, 2023 · Feb 4, 2023 · Feb 4, 2023 · Feb 4, 2023
commit f07672960ac265555d5042957a912b1415ac0332
diff --git a/doc/api/util.md b/doc/api/util.md
@@ -2008,7 +2008,7 @@ the returned promise shall remain pending if `resource`
 goes out of memory. The function shall automatically
 cleanup any event listeners it attaches to `signal`.
 
-```js
+```cjs
 const { aborted } = require('util');
 
 const dependent = obtainSomethingAbortable();