From 1296545fa3174225fb86b38e1d5041550e2b6c9c Mon Sep 17 00:00:00 2001
From: Iuri Matias <iuri.matias@gmail.com>
Date: Mon, 17 Sep 2018 13:36:20 -0400
Subject: [PATCH] make function defaul arg instead

---
 lib/modules/ens/index.js | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/lib/modules/ens/index.js b/lib/modules/ens/index.js
index 85b182ed7..7329f04d5 100644
--- a/lib/modules/ens/index.js
+++ b/lib/modules/ens/index.js
@@ -33,11 +33,7 @@ class ENS {
     this.events.setCommandHandler("storage:ens:associate", this.associateStorageToEns.bind(this));
   }
 
-  setProviderAndRegisterDomains(_cb) {
-    let cb = _cb
-    if (!cb) {
-      cb = function() {}
-    }
+  setProviderAndRegisterDomains(cb = (()=>{})) {
     const self = this;
     async.parallel([
       function getENSRegistry(paraCb) {