add option to force dig lookup to return empty list

[jpmens]

SUMMARY

This fix causes dig lookup to return an empty list instead of a list of empty strings, behaviour which was probably erroneously introduced years ago but which seems a bug.

Fixes #5428

ISSUE TYPE

• Bugfix Pull Request

COMPONENT NAME

dig

ADDITIONAL INFORMATION

TASK [Print retrieve NS] ************************************************************
ok: [localhost] => {
    "ns": []
}

TASK [nxdomain (real_empty==False)] *************************************************
ok: [localhost] => {
    "msg": [
        "NXDOMAIN"
    ]
}

TASK [nxdomain (real_empty==True)] **************************************************
ok: [localhost] => {
    "msg": []
}

[felixfontein]

Thanks! Can you add a changelog fragment as well?

[jpmens]

Can you add a changelog fragment as well?

done.

[github-actions]

Docs Build 📝

Thank you for contribution!✨

This PR has been merged and your docs changes will be incorporated when they are next published.

[felixfontein]

@jpmens thanks for improving the plugin!