Update copyright header

2022-01-14 23:41:01 +01:00 · 2022-01-14 23:41:01 +01:00 · 68bfd7e66c
--- a/exile.h
+++ b/exile.h
@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021 Albert S. <mail at quitesimple dot org>
+ * Copyright (c) 2019-2022 Albert Schwarzkopf <mail at quitesimple dot org>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above