fix overlong string

Author: SRHerzog

test/parallel/test-http-early-hints.js

@@ -76,7 +76,8 @@ const testResBody = 'response content\n';
     req.on('information', common.mustCall((res) => {
       assert.strictEqual(
         res.headers.link,
-        '</styles.css>; rel=preload; as=style, </scripts.js>; crossorigin; rel=preload; as=script, </scripts.js>; rel=preload; as=script; crossorigin'
+        '</styles.css>; rel=preload; as=style, </scripts.js>; crossorigin; ' +
+        'rel=preload; as=script, </scripts.js>; rel=preload; as=script; crossorigin'
       );
     }));