Strip trailing whitespace

COPYRIGHT.txt

@@ -11,12 +11,12 @@ Supervisor is Copyright (c) 2006-2011 Agendaless Consulting and Contributors.
 
 TrackRefs code Copyright (c) 2007 Zope Corporation and Contributors
 
-  This software is subject to the provisions of the Zope Public License, 
-  Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution. 
-  THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED 
-  WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
-  WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS 
-  FOR A PARTICULAR PURPOSE. 
+  This software is subject to the provisions of the Zope Public License,
+  Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution.
+  THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
+  WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+  WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
+  FOR A PARTICULAR PURPOSE.
 
 medusa was (is?) Copyright (c) Sam Rushing.