Comment 30 for bug 1570946

Reviewed: https://review.openstack.org/355622
Committed: https://git.openstack.org/cgit/openstack/glance_store/commit/?id=0ec9da6ce5e30848e6b060c98d91e072cbe4caf5
Submitter: Jenkins
Branch: master

commit 0ec9da6ce5e30848e6b060c98d91e072cbe4caf5
Author: Hemanth Makkapati <email address hidden>
Date: Mon Aug 15 14:36:21 2016 -0500

    Fix help text of swift_store_config_file

    While attempting to improve help text for configuration option
    "swift_store_config_file", None is incorrectly listed as a
    possible value. None is incorrect because a configuration option
    can either be set or not. It can't be set to None. When no value
    is set for a configuration option, it is inherently parsed as None
    by oslo.config. Hence, there is no need to specify None as a
    possible value.

    Also, the configuration option swift_store_config_file is marked as
    secret. Although the file pointed by this path can contain
    credentials, the path itself need not be marked secret. This in fact
    may make debugging harder if the file path is not logged clearly.

    Change-Id: If4fa246d642098e96093cb6be92b8cd9f4350268
    Partial-Bug: #1570946