Updates git-subtreee

diff --git a/git-subtree b/git-subtree
index 384de615cace002f55c95c20435bf0c76f92ce96..ad77342fc2397daa2cdb461d48f47bf5ff1923a0 160000 (submodule)
--- a/git-subtree
+++ b/git-subtree
@@ -1 +1 @@
-Subproject commit 384de615cace002f55c95c20435bf0c76f92ce96
+Subproject commit ad77342fc2397daa2cdb461d48f47bf5ff1923a0