[PATCH 20/44] sys/sys: further adoption of SPDX licensing ID tags.

From: pfg <[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/sys/rtems/include/sys/_bitset.h | 2 ++
 newlib/libc/sys/rtems/include/sys/_cpuset.h | 2 ++
 newlib/libc/sys/rtems/include/sys/bitset.h  | 2 ++
 3 files changed, 6 insertions(+)

diff --git a/newlib/libc/sys/rtems/include/sys/_bitset.h b/newlib/libc/sys/rtems/include/sys/_bitset.h
index 8d8a4c220..df8dcab19 100644
--- a/newlib/libc/sys/rtems/include/sys/_bitset.h
+++ b/newlib/libc/sys/rtems/include/sys/_bitset.h
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2008, Jeffrey Roberson <[email protected]>
  * All rights reserved.
  *
diff --git a/newlib/libc/sys/rtems/include/sys/_cpuset.h b/newlib/libc/sys/rtems/include/sys/_cpuset.h
index dc4e61f9b..15936d997 100644
--- a/newlib/libc/sys/rtems/include/sys/_cpuset.h
+++ b/newlib/libc/sys/rtems/include/sys/_cpuset.h
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2008,	Jeffrey Roberson <[email protected]>
  * All rights reserved.
  *
diff --git a/newlib/libc/sys/rtems/include/sys/bitset.h b/newlib/libc/sys/rtems/include/sys/bitset.h
index 931daf900..2c55b600a 100644
--- a/newlib/libc/sys/rtems/include/sys/bitset.h
+++ b/newlib/libc/sys/rtems/include/sys/bitset.h
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2008, Jeffrey Roberson <[email protected]>
  * All rights reserved.
  *
-- 
2.13.7