replace apply by spread syntax (#971)

lib/application.js

@@ -58,10 +58,10 @@ module.exports = class Application extends Emitter {
    * @api public
    */
 
-  listen() {
+  listen(...args) {
     debug('listen');
     const server = http.createServer(this.callback());
-    return server.listen.apply(server, arguments);
+    return server.listen(...args);
   }
 
   /**

lib/context.js

@@ -87,8 +87,8 @@ const proto = module.exports = {
    * @api public
    */
 
-  throw() {
-    throw createError.apply(null, arguments);
+  throw(...args) {
+    throw createError(...args);
   },
 
   /**

lib/request.js

@@ -460,8 +460,8 @@ module.exports = {
    * @api public
    */
 
-  accepts() {
-    return this.accept.types.apply(this.accept, arguments);
+  accepts(...args) {
+    return this.accept.types(...args);
   },
 
   /**
@@ -477,8 +477,8 @@ module.exports = {
    * @api public
    */
 
-  acceptsEncodings() {
-    return this.accept.encodings.apply(this.accept, arguments);
+  acceptsEncodings(...args) {
+    return this.accept.encodings(...args);
   },
 
   /**
@@ -494,8 +494,8 @@ module.exports = {
    * @api public
    */
 
-  acceptsCharsets() {
-    return this.accept.charsets.apply(this.accept, arguments);
+  acceptsCharsets(...args) {
+    return this.accept.charsets(...args);
   },
 
   /**
@@ -511,8 +511,8 @@ module.exports = {
    * @api public
    */
 
-  acceptsLanguages() {
-    return this.accept.languages.apply(this.accept, arguments);
+  acceptsLanguages(...args) {
+    return this.accept.languages(...args);
   },
 
   /**