Update vendored libgit2 to 838a2f291

carlosmn · carlosmn · commit 92501bd66350 · 2018-10-07T18:50:25.000+02:00
diff --git a/vendor/libgit2 b/vendor/libgit2
@@ -1 +1 @@
-Subproject commit 9275d84c583a030e759edbfafacf99c42a83c543
+Subproject commit 838a2f2918b6d9fad8768d2498575ff5d75c35f0
