clamsmtpd -version (return code: 0)
clamsmtpd (version 1.10)
(config: /etc/clamsmtpd.conf)
clamsmtpd --help (return code: 2)
clamsmtpd: invalid option -- '-'
usage: clamsmtpd [-d debuglevel] [-f configfile] [-p pidfile]
clamsmtpd -v