Merge branch 'PR/tests-subtest-lifecycle' of https://github.com/karelzak/util-linux...

* 'PR/tests-subtest-lifecycle' of https://github.com/karelzak/util-linux-work:
  tests: (findmnt) add missing ts_finalize_subtest
  tests: add ts_finalize_subtest before return in functions
  tests: add ts_finalize_subtest before continue in loops
  tests: move ts_finalize_subtest after if/else blocks
  tests: add subtest status tracking to ts_finalize_subtest