Update the copyright year in the LICENSE file

The copyright statement in the LICENSE file is intended to cover all
the files in the repository, so it should have the same end year as
the most recently edited files.

diff --git a/LICENSE b/LICENSE
index 90f7ac2..54ec971 100644 (file)
--- a/LICENSE
+++ b/LICENSE
@@ -10,7 +10,7 @@ preferred license of many projects (OpenBSD, for example).
 
 copyright notice
 ----------------
-Copyright (c) 2004-2020 Jeremy Stanley <fungi@yuggoth.org> and other
+Copyright (c) 2004-2021 Jeremy Stanley <fungi@yuggoth.org> and other
 mudpy authors listed in the Git history or AUTHORS file.
 
 permission notice