[releng] add comment that the email is automatic

[Olav Vitters <ovitters src gnome org>]

commit cb370a66f41e8d30e9a094e98b06fa84515ec5f8
Author: Olav Vitters <olav vitters nl>
Date:   Wed Apr 23 23:09:02 2014 +0200

    add comment that the email is automatic

 tools/schedule/automail.py |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)
---
diff --git a/tools/schedule/automail.py b/tools/schedule/automail.py
index 4e75bc9..6c0aff0 100755
--- a/tools/schedule/automail.py
+++ b/tools/schedule/automail.py
@@ -17,7 +17,10 @@ page:
 For a quick overview of the GNOME schedule, please see:
    http://live.gnome.org/Schedule
 
-Thanks,"""
+Thanks,
+-- 
+Automatically generated email. Source at:
+https://git.gnome.org/browse/releng/tree/tools/schedule/automail.py""";
 
 def mail_events(events):
     if not len(events): return # sanity check