Add missing space in exception message.

git-svn-id: https://svn.erp5.org/repos/neo/trunk@2278 71dcc9de-d417-0410-9af5-da40c76e7ee4

neo/client/app.py

@@ -822,7 +822,7 @@ class Application(object):
     def tpc_finish(self, transaction, f=None):
         """Finish current transaction."""
         if self.local_var.txn is not transaction:
-            raise StorageTransactionError('tpc_finish called for wrong'
+            raise StorageTransactionError('tpc_finish called for wrong '
                 'transaction')
         self._load_lock_acquire()
         try: