Change var name

Author: mjackson

modules/PathUtils.js

@@ -1,5 +1,5 @@
 var invariant = require('react/lib/invariant');
-var objectAssign = require('object-assign');
+var assign = require('object-assign');
 var qs = require('qs');
 
 var paramCompileMatcher = /:([a-zA-Z_$][a-zA-Z0-9_$]*)|[*.()\[\]\\+|{}^$]/g;
@@ -144,7 +144,7 @@ var PathUtils = {
     var existingQuery = PathUtils.extractQuery(path);
 
     if (existingQuery)
-      query = query ? objectAssign(existingQuery, query) : existingQuery;
+      query = query ? assign(existingQuery, query) : existingQuery;
 
     var queryString = qs.stringify(query, { arrayFormat: 'brackets' });