logger.go
func (l *logger) SetDebug(facility string, enabled bool) {
	l.mut.Lock()
	l.debug[facility] = enabled
	l.mut.Unlock()
}
func (l *logger) SetDebug(facility string, enabled bool) {
	l.mut.Lock()
	l.debug[facility] = enabled
	l.mut.Unlock()
}
// SetDebug enabled or disables debugging for the given facility name.