[Refactor] capitalized var names are for constructors only.

Author: ljharb

lib/index.js

@@ -1,9 +1,9 @@
 'use strict';
 
-var Stringify = require('./stringify');
-var Parse = require('./parse');
+var stringify = require('./stringify');
+var parse = require('./parse');
 
 module.exports = {
-    stringify: Stringify,
-    parse: Parse
+    stringify: stringify,
+    parse: parse
 };