Comment 2 for bug 1764786

Reviewed: https://review.openstack.org/565090
Committed: https://git.openstack.org/cgit/openstack/oslo.db/commit/?id=eccb4ef22e9852e0080d24a747e0aeb65f004481
Submitter: Zuul
Branch: master

commit eccb4ef22e9852e0080d24a747e0aeb65f004481
Author: Erik Olof Gunnar Andersson <email address hidden>
Date: Sun Apr 29 19:17:56 2018 -0700

    Deprecate min_pool_size

    This option has for a long time done nothing in oslo.db
    and sqlalchemy does not support this convention. As such I
    recommend that we deprecate and eventually remove the option.

    Closes-bug: #1764786

    Change-Id: Ib07b7b4200b5cf3a34b8eed441e6754da7d446cf