The comment is no longer accurate, updating it

test/built-ins/Array/isArray/15.4.3.2-0-5.js

@@ -7,7 +7,7 @@
 /*---
 es5id: 15.4.3.2-0-5
 description: >
-    Array.isArray return false if its argument is not an Array
+    Array.isArray return true if its argument is an Array
     (Array.prototype)
 includes: [runTestCase.js]
 ---*/