babeld: bump copyright and use SPDX

Use SPDX license headers to be machine readable.

Signed-off-by: Nick Hainke <vincent@systemli.org>

diff --git a/babeld/Makefile b/babeld/Makefile
index 0b611286092464528135c15e100b3d6928f5a677..0f0aaa498b507cd9771efeb22520ba6689e1ebce 100644 (file)
--- a/babeld/Makefile
+++ b/babeld/Makefile
@@ -1,8 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
 #
-# Copyright (C) 2007-2009 OpenWrt.org
-#
-# This is free software, licensed under the GNU General Public License v2.
-# See /LICENSE for more information.
+# Copyright (C) 2007-2021 OpenWrt.org
 #
 
 include $(TOPDIR)/rules.mk