Use GIT-1.5.5-rc2

diff --git a/git b/git
index bc6100087cfac0293e6ccbea95a24223b724d072..803d5158123346229d71de53818920efbc88ca0f 160000 (submodule)
--- a/git
+++ b/git
@@ -1 +1 @@
-Subproject commit bc6100087cfac0293e6ccbea95a24223b724d072
+Subproject commit 803d5158123346229d71de53818920efbc88ca0f