testsuite: use SPDX

Replace boilerplate with SPDX tag.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

diff --git a/testsuite/tools/generate_nlmsg.c b/testsuite/tools/generate_nlmsg.c
index fe96f262204713688b39640564fda9db01432d72..106dca63686f2b1e38f6ccdf19a45ff8ca7624e7 100644 (file)
--- a/testsuite/tools/generate_nlmsg.c
+++ b/testsuite/tools/generate_nlmsg.c
@@ -1,11 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 /*
  * generate_nlmsg.c    Testsuite helper generating nlmsg blob
  *
- *             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 the Free Software Foundation; either version
- *             2 of the License, or (at your option) any later version.
- *
  * Authors:    Phil Sutter <phil@nwl.cc>
  */