Bump libgit2 to 809b0ca6b (v0.27.0-rc1)

carlosmn · carlosmn · commit 9b3eeb5141f4 · 2018-02-22T08:50:34.000+01:00
diff --git a/vendor/libgit2 b/vendor/libgit2
@@ -1 +1 @@
-Subproject commit 4893a9c01c8da084eb995178f80d0d453109056e
+Subproject commit 809b0ca6b9b6a5648b8e802a9f0c6a0821257595
