IBM FlashSystem driver using py3.5 incompatible code

[Sean McGinnis]

The string.maketrans() call was deprecated in python 3.1 and appears to have been removed in python 3.5.

https://github.com/openstack/cinder/blob/master/cinder/volume/drivers/ibm/flashsystem_common.py#L185

This code will break when run under python 3.5, and since our pylint job now picks up whatever is the installed python 3 version, that results in the error:

"Module 'string' has no 'maketrans' member"

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/c/openstack/cinder/+/855479

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/openstack/cinder/+/855479
Committed: https://opendev.org/openstack/cinder/commit/6d023cfd55f545149742609e55d9ea8a133fc0ba
Submitter: "Zuul (22348)"
Branch: master

commit 6d023cfd55f545149742609e55d9ea8a133fc0ba
Author: tushargite96 <email address hidden>
Date: Thu Sep 1 12:59:28 2022 +0530

    IBM FlashSystem driver using py3.5 incompatible code

    The string.maketrans() call was deprecated in python 3.1 and
    appears to have been removed in python 3.5

    [1] https://docs.python.org/3/library/stdtypes.html#bytes.maketrans
    [2] https://docs.python.org/3/whatsnew/3.1.html#other-language-changes

    Closes-Bug: #1777926
    Change-Id: I78c51e80063c5c290bc32aa90ae53255934bbe24

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/cinder 22.0.0.0rc1 release candidate.