Fix typo in variable name setPrototypeOf

closes #3266

lib/application.js

@@ -28,7 +28,7 @@ var deprecate = require('depd')('express');
 var flatten = require('array-flatten');
 var merge = require('utils-merge');
 var resolve = require('path').resolve;
-var setPrototyeOf = require('setprototypeof')
+var setPrototypeOf = require('setprototypeof')
 var slice = Array.prototype.slice;
 
 /**
@@ -95,10 +95,10 @@ app.defaultConfiguration = function defaultConfiguration() {
     }
 
     // inherit protos
-    setPrototyeOf(this.request, parent.request)
-    setPrototyeOf(this.response, parent.response)
-    setPrototyeOf(this.engines, parent.engines)
-    setPrototyeOf(this.settings, parent.settings)
+    setPrototypeOf(this.request, parent.request)
+    setPrototypeOf(this.response, parent.response)
+    setPrototypeOf(this.engines, parent.engines)
+    setPrototypeOf(this.settings, parent.settings)
   });
 
   // setup locals
@@ -228,8 +228,8 @@ app.use = function use(fn) {
     router.use(path, function mounted_app(req, res, next) {
       var orig = req.app;
       fn.handle(req, res, function (err) {
-        setPrototyeOf(req, orig.request)
-        setPrototyeOf(res, orig.response)
+        setPrototypeOf(req, orig.request)
+        setPrototypeOf(res, orig.response)
         next(err);
       });
     });

lib/middleware/init.js

@@ -13,7 +13,7 @@
  * @private
  */
 
-var setPrototyeOf = require('setprototypeof')
+var setPrototypeOf = require('setprototypeof')
 
 /**
  * Initialization middleware, exposing the
@@ -32,8 +32,8 @@ exports.init = function(app){
     res.req = req;
     req.next = next;
 
-    setPrototyeOf(req, app.request)
-    setPrototyeOf(res, app.response)
+    setPrototypeOf(req, app.request)
+    setPrototypeOf(res, app.response)
 
     res.locals = res.locals || Object.create(null);