Init combines the configuration from config with the command line flags to initialize the Logging systems.

TODO: remove toSyslog and toStderr from the init function.

LogTotalExpvars logs all registered expvar metrics.

NewLogger creates a new Logger instance with custom debug selector.

WTF prints the message at CRIT level and panics immediately with the same message.

From /usr/include/sys/syslog.h.

Logger provides a logging type using the global logp functionality.