From 5f08aa44bdddf3ed20319e26c71ed4a6cbac7f30 Mon Sep 17 00:00:00 2001
From: Steven Hargrove <steven.hargrove@gmail.com>
Date: Thu, 6 Jul 2017 16:40:58 -0400
Subject: [PATCH] removed default params for node 4

---
 lib/Chunk.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/Chunk.js b/lib/Chunk.js
index f02a30296fc..41cac42cd37 100644
--- a/lib/Chunk.js
+++ b/lib/Chunk.js
@@ -421,8 +421,8 @@ class Chunk {
 		};
 	}
 
-	sortModules(sortByFn = sortById) {
-		this._modules.sortWith(sortByFn);
+	sortModules(sortByFn) {
+		this._modules.sortWith(sortByFn || sortById);
 	}
 
 	sortItems() {