Add a raise after doOperation call to verify that it never returns.

This is identical to what is done in master/app.py:run.

git-svn-id: https://svn.erp5.org/repos/neo/trunk@1685 71dcc9de-d417-0410-9af5-da40c76e7ee4

neo/storage/app.py

@@ -153,6 +153,7 @@ class Application(object):
                         self.verifyData()
                         self.initialize()
                         self.doOperation()
+                        raise RuntimeError, 'should not reach here'
                     except OperationFailure:
                         logging.error('operation stopped')
                         # XXX still we can receive answer packet here