[gnome-ostree] supybot: Another fix

[Colin Walters <walters src gnome org>]

commit 4f28fbadc7abb818a9f0a0952facdaca380ac3bb
Author: Colin Walters <walters verbum org>
Date:   Fri Sep 6 16:09:55 2013 -0400

    supybot: Another fix

 extras/supybot/GNOMEOSTree/plugin.py |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/extras/supybot/GNOMEOSTree/plugin.py b/extras/supybot/GNOMEOSTree/plugin.py
index f309e86..c517354 100644
--- a/extras/supybot/GNOMEOSTree/plugin.py
+++ b/extras/supybot/GNOMEOSTree/plugin.py
@@ -107,6 +107,7 @@ class GNOMEOSTree(callbacks.Plugin):
             return
         (last_state, last_version, new_state, status_msg) = querystate
         success = new_state['success']
+        last_success = last_state['success']
         taskver = new_state['version']
         success_changed = last_success != success
         success_str = success and 'successful' or 'failed'