Upgrade bazlets to latest master

Change-Id: If168d63f294f327b92d4bc036d672c884cee8398
diff --git a/WORKSPACE b/WORKSPACE
index 163e4ae..c860e87 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -3,7 +3,7 @@
 load("//:bazlets.bzl", "load_bazlets")
 
 load_bazlets(
-    commit = "e23df195f6b1050ef0f8ee1482ed592411e538cc",
+    commit = "738ddb525810a50c792736d7115a1bb5289bd3d3",
     #local_path = "/home/<user>/projects/bazlets",
 )