ValueError should use '%' instead of ','

[Haojie Jia]

The method _load_service_plugins() in /neutron/neutron/managers.py raise ValueError exception as follows:

if plugin_inst.get_plugin_type() in self.service_plugins:
                raise ValueError(_("Multiple plugins for service "
                                   "%s were configured"),
                                 plugin_inst.get_plugin_type())

ValueError do not support using ',' to connect log and variables,
we should use '%' instead, so it should be modified as:

if plugin_inst.get_plugin_type() in self.service_plugins:
                raise ValueError(_("Multiple plugins for service "
                                   "%s were configured") %
                                 plugin_inst.get_plugin_type())

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/64101

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/66490

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/100431

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/100431
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=61ac9c379f0acb43cd4bbcd9bd04cd9f53d315ca
Submitter: Jenkins
Branch: master

commit 61ac9c379f0acb43cd4bbcd9bd04cd9f53d315ca
Author: Yalei Wang <email address hidden>
Date: Tue Jun 17 10:56:46 2014 +0800

    ValueError should use '%' instead of ','

    The method _load_service_plugins() in /neutron/neutron/managers.py
     throw a ValueError using ',' to connect log and variables.
    ValueError do not support using ',' to connect log and variables,
    we should use '%' instead of ','

    Change-Id: Ic9b3756ac2bc36ddc689a66c078e205e0674f513
    Closes-Bug:#1264210