Update bazlets to most recent version

Change-Id: I53b7f61cad8c7d9a69aca9a1ab223c095620ff9a
diff --git a/WORKSPACE b/WORKSPACE
index 5dfb6bd..68d9be1 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -3,7 +3,7 @@
 load("//:bazlets.bzl", "load_bazlets")
 
 load_bazlets(
-    commit = "d1dd04380a2e41a32fca265c999936c35fcfae14",
+    commit = "b7514d03a7798905ff1513295b46620e57b8f386",
     #    local_path = "/home/<user>/projects/bazlets",
 )