Update copyright year
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14235)
diff --git a/include/internal/refcount.h b/include/internal/refcount.h
index e5c4aca..ee506e5 100644
--- a/include/internal/refcount.h
+++ b/include/internal/refcount.h
@@ -1,5 +1,5 @@
/*
- * Copyright 2016-2020 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2016-2021 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
