Updating unison

diff --git a/modules/unison b/modules/unison
index b0b54134f12d58ae3d901dc932c349f3b964752b..6efe7fdce0d03f70bdf361f86c9465789680761d 160000 (submodule)
--- a/modules/unison
+++ b/modules/unison
@@ -1 +1 @@
-Subproject commit b0b54134f12d58ae3d901dc932c349f3b964752b
+Subproject commit 6efe7fdce0d03f70bdf361f86c9465789680761d