[PATCH 1/4] sys/sys: further adoption of SPDX licensing ID tags.

From: "Pedro F. Giffuni" <[email protected]>

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/stdatomic.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/newlib/libc/include/stdatomic.h b/newlib/libc/include/stdatomic.h
index d58e795eb..f62ae7b6a 100644
--- a/newlib/libc/include/stdatomic.h
+++ b/newlib/libc/include/stdatomic.h
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2011 Ed Schouten <[email protected]>
  *                    David Chisnall <[email protected]>
  * All rights reserved.
-- 
2.35.3