openssh-9.9p1 problem with faillock pam module

[Brian Candler]

It's always worth checking the release notes for intervening versions 
when upgrading, as behaviour can change.

https://www.openssh.com/releasenotes.html

This particular change is mentioned in the release notes for 9.8, under 
the heading "Potentially-incompatible changes"

  *sshd(8)  <https://man.openbsd.org/sshd.8>: (portable OpenSSH only) sshd will no longer use argv[0]
    as the PAM service name. A new "PAMServiceName"sshd_config(5)  <https://man.openbsd.org/sshd_config.5>
    directive allows selecting the service name at runtime. This
    defaults to "sshd".bz2101  <https://bugzilla.mindrot.org/show_bug.cgi?id=2101>