util: update optional-lite to version 3.0.0
Change-Id: Icdc0117234404465a3facb802795a66f27467065
diff --git a/COPYING.md b/COPYING.md
index 38657b5..b1ab63e 100644
--- a/COPYING.md
+++ b/COPYING.md
@@ -3,11 +3,11 @@
ndn-cxx relies on third-party software, licensed under the following licenses:
-- The Boost libraries are licensed under the terms of the
- [Boost Software License, Version 1.0](https://www.boost.org/users/license.html)
+- The Boost libraries are licensed under the
+ [Boost Software License 1.0](https://www.boost.org/users/license.html)
- optional-lite by Martin Moene is licensed under the
- [MIT License](https://github.com/martinmoene/optional-lite/blob/master/LICENSE)
+ [Boost Software License 1.0](https://github.com/martinmoene/optional-lite/blob/master/LICENSE.txt)
- SQLite is in the [public domain](https://www.sqlite.org/copyright.html)