util: fixes type in argument type validation error

PR-URL: #25103
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>

Author: aoberoi

lib/util.js

@@ -302,7 +302,7 @@ function inherits(ctor, superCtor) {
 
   if (superCtor.prototype === undefined) {
     throw new ERR_INVALID_ARG_TYPE('superCtor.prototype',
-                                   'Function', superCtor.prototype);
+                                   'Object', superCtor.prototype);
   }
   Object.defineProperty(ctor, 'super_', {
     value: superCtor,

test/parallel/test-util-inherits.js

@@ -88,7 +88,7 @@ common.expectsError(function() {
 }, {
   code: 'ERR_INVALID_ARG_TYPE',
   type: TypeError,
-  message: 'The "superCtor.prototype" property must be of type Function. ' +
+  message: 'The "superCtor.prototype" property must be of type Object. ' +
            'Received type undefined'
 });