Fix all lib/ files with ESLint rules with 0 errors.

lib/util/riskystream.js

@@ -37,11 +37,11 @@ RiskyStream.prototype.expectEnd = function() {
 
 RiskyStream.prototype.waitForEnd = function() {
   var stream = this.stream
-    , endListener
+  var endListener
 
   this.expectEnd()
 
-  return new Promise(function(resolve/*, reject*/) {
+  return new Promise(function(resolve) {
       if (stream.ended) {
         return resolve(true)
       }