4. cflowd logging

cflowdmux and cflowd use syslog(3) to record errors and runtime status information. As a convention, each syslog message starts with a capitalized letter in brackets indicating the priority of the message:

code priority description [A] LOG_ALERT fatal errors [C] LOG_CRIT errors that need attention [E] LOG_ERR error conditions [I] LOG_INFO informational messages