Updated 'core' as an exception was missing + a small fix.

Signed-off-by: Roland Haeder <roland@mxchange.org>

diff --git a/core b/core
index 7a04a994e89aaa587b9163b5a0e37a9c00443408..d78b4fe6092ef6d399ef9f5e40e78aa4911e0438 160000 (submodule)
--- a/core
+++ b/core
@@ -1 +1 @@
-Subproject commit 7a04a994e89aaa587b9163b5a0e37a9c00443408
+Subproject commit d78b4fe6092ef6d399ef9f5e40e78aa4911e0438