[PATCH 1/2] sys/sys: further adoption of SPDX licensing ID tags.

[Sebastian Huber]

From: pfg <pfg@FreeBSD.org>

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
---
 newlib/libc/include/sys/tree.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/newlib/libc/include/sys/tree.h b/newlib/libc/include/sys/tree.h
index f4167c4e4..aef934a10 100644
--- a/newlib/libc/include/sys/tree.h
+++ b/newlib/libc/include/sys/tree.h
@@ -3,6 +3,8 @@
 /* $FreeBSD$ */
 
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright 2002 Niels Provos <provos@citi.umich.edu>
  * All rights reserved.
  *
-- 
2.16.4