[gjs/gnome-3-28] Fix scope warning for restrictedWords in the tweener module

[Philip Chimento <pchimento src gnome org>]

commit e114b35abfd663b9290b5ef9acb7721fa1011127
Author: Jason Hicks <jaszhix gmail com>
Date:   Tue Feb 13 05:12:35 2018 -0600

    Fix scope warning for restrictedWords in the tweener module

 modules/tweener/tweener.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/modules/tweener/tweener.js b/modules/tweener/tweener.js
index 98bde026..61c6654b 100644
--- a/modules/tweener/tweener.js
+++ b/modules/tweener/tweener.js
@@ -368,7 +368,7 @@ function _onEnterFrame() {
     return true;
 }
 
-const restrictedWords = {
+var restrictedWords = {
     time: true,
     delay: true,
     userFrames: true,