cpukit/libdl/rtl-alloc-check.py: Change to BSD-2 by hand

Updates #3053.

cpukit/libdl/rtl-alloc-check.py

@@ -1,10 +1,5 @@
-#
-# Copyright (c) 2019 Chris Johns <chrisj@rtems.org>.
-# All rights reserved.
-#
-# The license and distribution terms for this file may be
-# found in the file LICENSE in this distribution or at
-# http://www.rtems.org/license/LICENSE.
+# SPDX-License-Identifier: BSD-2-Clause
+
 #
 # Check the allocations for libdl:
 #
@@ -13,7 +8,30 @@
 #  2. Load and unload object files.
 #
 #  3. Capture the trace output and feed to this tool
+
+# Copyright (c) 2019 Chris Johns <chrisj@rtems.org>.
+# All rights reserved.
 #
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
 
 from __future__ import print_function