db: whitespace cleanup, update copyright date

pisi/db/itembyrepo.py

@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 #
-# Copyright (C) 2007, TUBITAK/UEKAE
+# Copyright (C) 2007 - 2011, TUBITAK/UEKAE
 #
 # 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
@@ -86,7 +86,7 @@ class ItemByRepo:
             else:
                 for item in self.dbobj[r].keys():
                     yield item, self.dbobj[r][item]
-        
+
     def item_repos(self, repo=None):
         repos = pisi.db.repodb.RepoDB().list_repos()
         if repo: