pam_tally --version (return code: 0)
--version: Unrecognised option --version
pam_tally: [--file rooted-filename] [--user username] [--reset[=n]] [--quiet]
pam_tally --help (return code: 0)
--help: Unrecognised option --help
pam_tally: [--file rooted-filename] [--user username] [--reset[=n]] [--quiet]