(merge (log_level cfg) (OC.log_level opt_cfg))
(merge (password cfg) (OC.password opt_cfg))
(merge (output_directory cfg) (OC.output_directory opt_cfg))
(merge (syslog cfg) (OC.syslog opt_cfg))
(merge (username cfg) (OC.username opt_cfg))
where
(merge (log_level cfg) (OC.log_level opt_cfg))
(merge (password cfg) (OC.password opt_cfg))
(merge (output_directory cfg) (OC.output_directory opt_cfg))
(merge (syslog cfg) (OC.syslog opt_cfg))
(merge (username cfg) (OC.username opt_cfg))
where