Move xmltooling forward

diff --git a/shibboleth/xmltooling b/shibboleth/xmltooling
index 353b772..abe6967 160000 (submodule)
--- a/shibboleth/xmltooling
+++ b/shibboleth/xmltooling
@@ -1 +1 @@
-Subproject commit 353b7728052ee906e8950756c5dfacefc1be3089
+Subproject commit abe6967b7dfc75603683fb86853b0804f997e687