Updated core.

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

diff --git a/core b/core
index a57889486c1cbc1a24f5926a02a80d319ed88a86..80d8dfb93ec212ef5073d8354f30397340b52b1a 160000 (submodule)
--- a/core
+++ b/core
@@ -1 +1 @@
-Subproject commit a57889486c1cbc1a24f5926a02a80d319ed88a86
+Subproject commit 80d8dfb93ec212ef5073d8354f30397340b52b1a