Update copyright year
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15181)
diff --git a/test/errtest.c b/test/errtest.c
index 1d4a708..e19501a 100644
--- a/test/errtest.c
+++ b/test/errtest.c
@@ -1,5 +1,5 @@
/*
- * Copyright 2018-2020 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2018-2021 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
