git: updated subproject git to match new master

Signed-off-by: Steffen Prohaska <prohaska@zib.de>
diff --git a/git b/git
index 9c792c5..2f346ed 160000
--- a/git
+++ b/git
@@ -1 +1 @@
-Subproject commit 9c792c5545415dfcbb60f819b9555bbe874a508c
+Subproject commit 2f346edb63d87f5c196f6254ce05e411548da04f