DOC: ./pam_authentication.sh asks for password
The documentation seems to be not precise enough at the following point:
If you want, you can run a test now: ./pam_authentication.sh asdf ghjk should print [FAILED] and return with a non-zero exit code. Unless there is a user asdf with password ghjk on your system, of course.
In my case, issuing the above command leads to:
Enter the password:
in the first place...
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