Comment 7 for bug 1827775

Reviewed: https://review.opendev.org/657824
Committed: https://git.openstack.org/cgit/openstack/tripleo-heat-templates/commit/?id=bbd2d944836d07aba396998f6590c87a978e59f0
Submitter: Zuul
Branch: master

commit bbd2d944836d07aba396998f6590c87a978e59f0
Author: Martin Schuppert <email address hidden>
Date: Wed May 8 15:40:55 2019 +0200

    Allow multiple same options in nova.conf

    In python3 SafeConfigParser was renamed to ConfigParser and the default
    for duplicate options default to true. In case of nova it is valid to
    have duplicate option lines, e.g. pci_alias can be specified more then
    once in nova.conf and results in an error like seen in
    https://bugs.launchpad.net/tripleo/+bug/1827775

    https://docs.python.org/3/library/configparser.html#configparser.ConfigParser

    Closes-Bug: #1827775

    Change-Id: I410af66d8dceb6dde84828c9bd1969aa623bf34c