[PATCH 19/44] include: further adoption of SPDX licensing ID tags.

From: pfg <[email protected]>

Mainly focus on files that use BSD 3-Clause license.

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.

Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.
---
 newlib/libc/sys/rtems/include/arpa/inet.h | 4 +++-
 newlib/libc/sys/rtems/include/netdb.h     | 2 ++
 newlib/libc/sys/rtems/include/termios.h   | 2 ++
 3 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/newlib/libc/sys/rtems/include/arpa/inet.h b/newlib/libc/sys/rtems/include/arpa/inet.h
index 91e3a828a..14cd24e36 100644
--- a/newlib/libc/sys/rtems/include/arpa/inet.h
+++ b/newlib/libc/sys/rtems/include/arpa/inet.h
@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * ++Copyright++ 1983, 1993
  * -
  * Copyright (c) 1983, 1993
diff --git a/newlib/libc/sys/rtems/include/netdb.h b/newlib/libc/sys/rtems/include/netdb.h
index ff7a7ab63..0e64a9c02 100644
--- a/newlib/libc/sys/rtems/include/netdb.h
+++ b/newlib/libc/sys/rtems/include/netdb.h
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1980, 1983, 1988, 1993
  *	The Regents of the University of California.  All rights reserved.
  *
diff --git a/newlib/libc/sys/rtems/include/termios.h b/newlib/libc/sys/rtems/include/termios.h
index 0e8918e3e..5ada6cd31 100644
--- a/newlib/libc/sys/rtems/include/termios.h
+++ b/newlib/libc/sys/rtems/include/termios.h
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1988, 1989, 1993, 1994
  *	The Regents of the University of California.  All rights reserved.
  *
-- 
2.13.7