Update packages

[dotemacs] / packages / shackle

diff --git a/packages/shackle b/packages/shackle
index fcd9f53cd044ad169a240e3d12a2cf2d65485db6..4ccacf92d0bfd7729388a3e698c1ded55e7f2b92 160000 (submodule)
--- a/packages/shackle
+++ b/packages/shackle
@@ -1 +1 @@
-Subproject commit fcd9f53cd044ad169a240e3d12a2cf2d65485db6
+Subproject commit 4ccacf92d0bfd7729388a3e698c1ded55e7f2b92