[virt-who] Add missing license header

[Radek Novacek]

commit c815685e18a909430d657e5bd58f74f284e18670
Author: Radek Novacek <rnovacek(a)redhat.com&gt;
Date:   Mon Jun 16 10:47:09 2014 +0200

    Add missing license header

 manager/manager.py |   19 +++++++++++++++++++
 1 files changed, 19 insertions(+), 0 deletions(-)
---
diff --git a/manager/manager.py b/manager/manager.py
index ed104c2..f8ed382 100644
--- a/manager/manager.py
+++ b/manager/manager.py
@@ -1,3 +1,22 @@
+"""
+Abstraction for accessing different subscription managers.
+
+Copyright (C) 2014 Radek Novacek <rnovacek(a)redhat.com&gt;
+
+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 2
+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, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+"""
 
 
 class ManagerError(Exception):