Update copyright year
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/13999)
diff --git a/include/crypto/sm2.h b/include/crypto/sm2.h
index a38d940..78fd4db 100644
--- a/include/crypto/sm2.h
+++ b/include/crypto/sm2.h
@@ -1,5 +1,5 @@
/*
- * Copyright 2017-2020 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2017-2021 The OpenSSL Project Authors. All Rights Reserved.
* Copyright 2017 Ribose Inc. All Rights Reserved.
* Ported from Ribose contributions from Botan.
*
