Comment 5 for bug 1974475

Reviewed: https://review.opendev.org/c/starlingx/nfv/+/864109
Committed: https://opendev.org/starlingx/nfv/commit/60b161b9c28cb5100c9e41267678595a72068c30
Submitter: "Zuul (22348)"
Branch: master

commit 60b161b9c28cb5100c9e41267678595a72068c30
Author: Al Bailey <email address hidden>
Date: Wed Nov 9 12:27:57 2022 +0000

    Fix kube-upgrade-orchestration on debian

    During kube-upgrade orchestration, the final cleanup
    step returns an empty result body. The orchestrator
    was not handling this properly on Debian.

    In Debian, the API results are returned as bytes.
    The code that looks for an empty string needed to
    handle an empty byte string.

    Test Plan:
     PASS: Debian AIO-SX sw-manager kube-upgrade-strategy apply

    Closes-Bug: #1996057
    Related-Bug: #1974475

    Signed-off-by: Al Bailey <email address hidden>
    Change-Id: I37849f25fc908fb06b3e40cedfaa5690f45b289d