update vim-elixir-fold version

Gaspar Chilingarov · Gaspar Chilingarov · commit 613aeb391aae · 2016-12-06T17:14:11.000+04:00
diff --git a/bundle/vim-elixir-fold b/bundle/vim-elixir-fold
@@ -1 +1 @@
-Subproject commit 651487da46fe8589cd80e9fa375eed6cfddd8757
+Subproject commit 0f228cd93acea0a8496565393cb7adfc1e9c3666
