Build with right version for mod_auth_gssapi

diff --git a/mod_auth_gssapi b/mod_auth_gssapi
index b700368..5ff98c4 160000 (submodule)
--- a/mod_auth_gssapi
+++ b/mod_auth_gssapi
@@ -1 +1 @@
-Subproject commit b70036881312bfb5642710d4b7b8e4f65590b215
+Subproject commit 5ff98c4fea074ee1264fd1e357b5117c221ce83c