Update wdef_tools submodule

diff --git a/wdef_tools b/wdef_tools
index 4bca6c07253d9cf4212c1e65f08b5dcdad573695..d9a396f6dac0f499f21c1f796e6bf39f28e0a71e 160000 (submodule)
--- a/wdef_tools
+++ b/wdef_tools
@@ -1 +1 @@
-Subproject commit 4bca6c07253d9cf4212c1e65f08b5dcdad573695
+Subproject commit d9a396f6dac0f499f21c1f796e6bf39f28e0a71e