Add explicit license information

It's nice to have for situations where this script is found outside of
the notmuch source repository (e.g. after being installed).

diff --git a/devel/nmbug/nmbug-status b/devel/nmbug/nmbug-status
index 03621bd534491b185db4dbbc63e4ad38b52b6d14..a7c79206621e8d21ac3305210be45eac54e902be 100755 (executable)
--- a/devel/nmbug/nmbug-status
+++ b/devel/nmbug/nmbug-status
@@ -1,10 +1,23 @@
 #!/usr/bin/python
 #
 # Copyright (c) 2011-2012 David Bremner <david@tethera.net>
-# License: Same as notmuch
+#
 # dependencies
 #       - python 2.6 for json
 #       - argparse; either python 2.7, or install separately
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see http://www.gnu.org/licenses/ .
 
 from __future__ import print_function
 from __future__ import unicode_literals