+ <b>--config-test</b>
+ Exit after loading the configuration files before binding to the
+ listen address. The exit code signals whether or not the
+ configuration files have been successfully loaded.
+
+ If the exit code is 1, at least one of the configuration files
+ is invalid, if it is 0, all the configuration files have been
+ successfully loaded (but may still contain errors that can
+ currently only be detected at run time).
+
+ This option doesn't affect the log setting, combination with
+ "--no-daemon" is recommended if a configured log file shouldn't
+ be used.
+
+ <b>--help</b> Print brief usage info and exit.