Update to libgit2 a051ee3
diff --git a/vendor/libgit2 b/vendor/libgit2
index 73dab76..a051ee3 160000
--- a/vendor/libgit2
+++ b/vendor/libgit2
@@ -1 +1 @@
-Subproject commit 73dab7692e780e1df96093a54854795428eb66b4
+Subproject commit a051ee31f2a3790410c2b482611f691135d2eae0