FreeBSD-main-amd64-test - Build #28689 - Still Unstable

FreeBSD-main-amd64-test - Build #28689 (22c1f5d0ec215e36dd4448b9128b856b5441d21c) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/28689/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/28689/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-main-amd64-test/28689/console

Status explanation:
"Unstable" - some tests are suspected being broken by the following changes
"Still Unstable" - the failing test cases have not been fixed by these
                   following changes and this is a notification to note that
                   these changes have not been fully tested by the CI system

Change summaries:
(Those commits are likely but not certainly responsible)

b813e46e153327b66db4791ec0003b7e7cc51214 by bapt:
nuageinit: fix dirname('/') returning nil instead of '/'

5f58d9207469dcd2d3fa24db7f5276a681df91e5 by bapt:
nuageinit: add dirname edge case tests

9459465308ff17a11cad1c3d1987951055f114d6 by bapt:
nuageinit: add config2_network DNS services test

57807f389a9e42774d944e256b499f5fd82ff855 by bapt:
nuageinit: add nil/empty guard to decode_base64()

46d1758aa7a2af37a356a93812b492a406c6ffd4 by bapt:
nuageinit: add hostname validation (RFC 952/1123) to sethostname()

852504a5fa5eb6b4dea98bd7abdb89f1c7bab2b0 by bapt:
nuageinit: remove dead checkgroup(), inline check in purge_group()

fdff89256fd921e40f2fa532895315b1dab6f5e6 by bapt:
nuageinit: fix non-standard f:close(cmd) and remove dead precmd

cf5722ed60cf271e516927684c90464debb37496 by bapt:
nuageinit: fix TOCTOU in addsshkey, adddoas, addsudo

0ba9b7b7f815b57f1c121b0f78eaee02d2cdd414 by bapt:
nuageinit: fix update_sshd_config crash when file does not exist

ea0932d71aa7a2d25b178f1593bfad194d8c7929 by bapt:
nuageinit: refactor goto abuse in chpasswd()

22c1f5d0ec215e36dd4448b9128b856b5441d21c by bapt:
nuageinit: complete SSH support with ssh_deletekeys and disable_root



The failed test cases:

1 tests failed.
FAILED:  usr.bin.file.file_test.contrib_file_tests

Error Message:
atf-check failed; see the output of the test for details