Another mod_auth_gssapi fix

diff --git a/mod_auth_gssapi b/mod_auth_gssapi
index 201831d..7b71e44 160000 (submodule)
--- a/mod_auth_gssapi
+++ b/mod_auth_gssapi
@@ -1 +1 @@
-Subproject commit 201831d6ce85b685b51171b2c1a9b6107d7808a2
+Subproject commit 7b71e44f8f01f5e54fca24140dbc8bfea2a37f59