Upstream changes:
0.52 [2021-02-17]
- Change bugtracker link to point GitHub issues instead of RT.
- Remove some old and broken links.
- Work by (Kaycie Goodman).
- Test fix (Pali, PR#32).
- Fix reporting caller information (file+line) when number of tests does
not match (Pali).
- Use better class names in t/runtests_return.t (Pali).
- Fix documentation to be more accurate regarding support and author
activity (Karen Etheridge).
- Ensure metadata is processed as v2 (Karen Etheridge).
- Remove unnecessary shebangs (Karen Etheridge).
- chmod ugo-x (Karen Etheridge).
0.51 [2019-04-29]
- Create fail_if_returned_late (Jason Terry, Oaxlin, PR#23)
ef2ee6b17a