This series contains:
- lister: move to utils
- tidy up the clutter in the root dir
Based on Avi's feedback to `[PATCH 1/1] utils: directory_lister: close: always abort queue` that was sent to the mailing list:
- directory_lister: drop abort method
- lister: do not require get after close to fail
- test: lister_test: test_directory_lister_close simplify indentation
- cosmetic cleanup
Closes#10142
* github.com:scylladb/scylla:
test: lister_test: test_directory_lister_close simplify indentation
lister: do not require get after close to fail
directory_lister: drop abort method
lister: move to utils