LibJS: Update a couple of outdated spec comments

These are editorial changes in the ECMA-262 spec.

See:
- e080a7f
- c5a9094
- 5091520
- 1c6564b
- e06c80c

Userland/Libraries/LibJS/Runtime/FunctionEnvironment.cpp

@@ -32,7 +32,7 @@ ThrowCompletionOr<Value> FunctionEnvironment::get_super_base() const
     // 1. Let home be envRec.[[FunctionObject]].[[HomeObject]].
     auto home_object = m_function_object->home_object();
 
-    // 2. If home has the value undefined, return undefined.
+    // 2. If home is undefined, return undefined.
     if (!home_object)
         return js_undefined();