Raise copyright years

diff --git a/main.go b/main.go
index ce7a3d44ce88e35d64aaae2f0d19c7f2b9928435..1bd48fbcb337aac74e0c2e01b26876c7701a3542 100644 (file)
--- a/main.go
+++ b/main.go
@@ -1,6 +1,6 @@
 /*
 gohpenc -- Go high-performance encryption utility
-Copyright (C) 2017-2020 Sergey Matveev <stargrave@stargrave.org>
+Copyright (C) 2017-2021 Sergey Matveev <stargrave@stargrave.org>
 
 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by