doc: update header in tests
diff --git a/test/test.py b/test/test.py
index ea28650..42936b7 100644
--- a/test/test.py
+++ b/test/test.py
@@ -1,10 +1,9 @@
#! /usr/bin/env python
-# Python Serial Port Extension for Win32, Linux, BSD, Jython
-# see __init__.py
#
+# This file is part of pySerial - Cross platform serial port support for Python
# (C) 2001-2015 Chris Liechti <cliechti@gmx.net>
-# this is distributed under a free software license, see license.txt
-
+#
+# SPDX-License-Identifier: BSD-3-Clause
"""\
Some tests for the serial module.
Part of pyserial (http://pyserial.sf.net) (C)2001-2015 cliechti@gmx.net