Updated openstack/openstack
Project: openstack/oslo.db  0996c5d0166ac17065993ac857201024da1f63a7

Updates one line docstring with dot to pass H402

Updates one line docstring with dot to pass H402.
Removes H402 from ignore setting in tox.ini.

Change-Id: Ibb4f16cbb3bb453456b579e0fafbd3f4c4e60aff