hammer: added copyright header

diff --git a/hammer.py b/hammer.py
index 31058fe0aa2d3c601fe40928d255dc2c10fb1493..3d6ca3ecc721306e0f17c8ca5d57264e8912dceb 100755 (executable)
--- a/hammer.py
+++ b/hammer.py
@@ -1,4 +1,11 @@
 #!/usr/bin/env python3
+
+# Copyright (C) 2014-2017 Internet Systems Consortium, Inc. ("ISC")
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
 from __future__ import print_function
 import os
 import sys