Fix license statements on db_utils.py

When the code was migrated from swh.storage, some other ancillary functions were merged into this file. So bits of it are under the LGPLv3 (the code pulled from psycopg2) and bits are under the GPLv3 (the code we wrote).

Test Plan

only comment shuffling

---

Migrated from D3987 (view on Phabricator)

Build is green

Patch application report for D3987 (id=14058)

Rebasing onto 28d61c8c...

Current branch diff-target is up to date.

Changes applied before test

commit b63d7f432caeb9d75da6151fb20f3764beec7f80
Author: Nicolas Dandrimont <nicolas@dandrimont.eu>
Date:   Fri Sep 18 14:39:50 2020 +0200

    Fix license statements on db_utils.py
    
    When the code was migrated from swh.storage, some other ancillary functions were
    merged into this file. So bits of it are under the LGPLv3 (the code pulled from
    psycopg2) and bits are under the GPLv3 (the code we wrote).

See https://jenkins.softwareheritage.org/job/DCORE/job/tests-on-diff/63/ for more details.

This is fine, and better than the status quo. (We should in theory also mention the other applicable copyright notices at the beginning of the file, but we weren't doing that before either, so this change LGTM.)

Merge request was accepted

approved this merge request

Merge request was merged

closed