Replace the value of None with actual value of 'description' in type-show CLI

[haixin]

When exec CLI command: manila type-show {type_id}
Currently, although the description of share type API in the response body, but it has been replaced by None(default) in manilaclient.

https://github.com/openstack/python-manilaclient/blob/5b2dc5f806789203b67d9f441d6ef1c926894d8d/manilaclient/v2/shell.py#L173

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/661681

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/661681
Committed: https://git.openstack.org/cgit/openstack/python-manilaclient/commit/?id=180ab3e0a2928c8c49da0b34172854acf14025ca
Submitter: Zuul
Branch: master

commit 180ab3e0a2928c8c49da0b34172854acf14025ca
Author: haixin <email address hidden>
Date: Tue May 28 14:48:03 2019 +0800

    Change the default value of description of type show

    When exec CLI command: manila type-show {type_id}
    Currently, although the description of share type API in the response
    body, but it has been replaced by None(default) in manilaclient.

    Closes-Bug:#1830677
    Co-Authored-By: Brin Zhang <email address hidden>

    Change-Id: I35b60496788ed752d605b289d994f3407ebb8388

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/python-manilaclient 1.28.0 release.