Comment 2 for bug 1964156

Reviewed: https://review.opendev.org/c/starlingx/tools/+/832676
Committed: https://opendev.org/starlingx/tools/commit/feb596bdfdb4c8a5f921da648b3e219e779b7a93
Submitter: "Zuul (22348)"
Branch: master

commit feb596bdfdb4c8a5f921da648b3e219e779b7a93
Author: Scott Little <email address hidden>
Date: Tue Mar 8 12:37:17 2022 -0500

    dl_tarball.sh: safer downloads of kernel-rt

    dl_tarball.sh assumes an el8 kernel, and lacks of error
    handling. This may result in an attempted download of a
    non-el8 reporting success, but producing a src.rpm containing
    an el8 kernel instead.

    Testing:
    - Download current el8 rt kernel
    - Download previous el7 rt kernel
    - DL using invalid URL - error caught
    - DL using invalid sha - error caught

    Closes-Bug: 1964156
    Change-Id: I5ca5130a7f1c4e967c876060d95f9d6a2c2e8cf5
    Signed-off-by: Scott Little <email address hidden>