[accerciser] Pass a string when setting a tree view column; fixes bug 641534

[Mike Gorse <mgorse src gnome org>]

commit 0b3228466a55f4e38d510dcc0e079c333acca7cc
Author: Mike Gorse <mgorse novell com>
Date:   Fri Feb 4 13:30:31 2011 -0600

    Pass a string when setting a tree view column; fixes bug 641534

 src/lib/accerciser/accessible_treeview.py |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/lib/accerciser/accessible_treeview.py b/src/lib/accerciser/accessible_treeview.py
index 98e37f7..185066b 100644
--- a/src/lib/accerciser/accessible_treeview.py
+++ b/src/lib/accerciser/accessible_treeview.py
@@ -655,7 +655,7 @@ class AccessibleTreeView(gtk.TreeView, Tools):
       if not self.model.remove(child_iter):
         break
     acc = self.model[iter][COL_ACC]
-    self.model[iter][COL_CHILDCOUNT] = acc.childCount
+    self.model[iter][COL_CHILDCOUNT] = str(acc.childCount)
     self.model[iter][COL_FILLED] = False
 
   def refreshSelected(self):