Updated openstack/openstack
Project: openstack/keystone  2d829b4d9a886909735daa0f8a9419c8ba8d3f87

Fix the copy-pasted help info for db_version

The previous help message was a simple copy-paste
from db_sync.

Change-Id: Ibf8f990ca130ee713c9fad2d1142e1657205ff8b
Closes-Bug: #1397207