Update bazlets to latest stable-2.15

Change-Id: I287439c41174ce10623fc1ef930e92d9e6e07867
diff --git a/WORKSPACE b/WORKSPACE
index 4e914a3..9b75005 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -3,7 +3,7 @@
 load("//:bazlets.bzl", "load_bazlets")
 
 load_bazlets(
-    commit = "0a528d17394aa49f08f61622ef74b47c36621e71",
+    commit = "34d5ef186f73c80e61dcfa057ee400b2725164bf",
     #local_path = "/home/ehugare/workspaces/bazlets",
 )