Update copyright notice

[empserver] / GNUmakefile.in

diff --git a/GNUmakefile.in b/GNUmakefile.in
index 6c85d3d8d907280bbbf9fe3488fff2fc2643a542..4d11aed22710531a3cbcf730b45daa22d672a93f 100644 (file)
--- a/GNUmakefile.in
+++ b/GNUmakefile.in
@@ -1,6 +1,6 @@
 #
 #   Empire - A multi-player, client/server Internet based war game.
-#   Copyright (C) 1986-2018, Dave Pare, Jeff Bailey, Thomas Ruschak,
+#   Copyright (C) 1986-2020, Dave Pare, Jeff Bailey, Thomas Ruschak,
 #                 Ken Stevens, Steve McClure, Markus Armbruster
 #
 #   Empire is free software: you can redistribute it and/or modify