It was revealed that the patch was missing for RHOSP5-EL6 starting from 2014.1.2-1. It was incorrectly excluded from packaging.
The error message doesn't appear in openstack-neutron-2014.1.3-5.el6ost.noarch Tested on Rhel6.6.
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://rhn.redhat.com/errata/RHSA-2014-1785.html