fixed jshint error

lib/rss.js

@@ -11,7 +11,9 @@ function ifTruePush(bool, array, data) {
 }
 
 function ifTruePushArray(bool, array, dataArray) {
-  if(!bool) return;
+  if(!bool) {
+    return;
+  }
 
   dataArray.forEach(function(item) {
     ifTruePush(item, array, item);