doc: update debuglog examples to use 'foo-bar' instead of 'foo'

PR-URL: #60867
Reviewed-By: Deokjin Kim <[email protected]>
Reviewed-By: Luigi Pinca <[email protected]>
Reviewed-By: Colin Ihrig <[email protected]>

Author: FEliuyg

doc/api/util.md

@@ -135,14 +135,14 @@ The `section` supports wildcard also:
 
 ```mjs
 import { debuglog } from 'node:util';
-const log = debuglog('foo');
+const log = debuglog('foo-bar');
 
 log('hi there, it\'s foo-bar [%d]', 2333);
 ```
 
 ```cjs
 const { debuglog } = require('node:util');
-const log = debuglog('foo');
+const log = debuglog('foo-bar');
 
 log('hi there, it\'s foo-bar [%d]', 2333);
 ```