in glog.go [138:152]
func (s *severity) Set(value string) error {
var threshold severity
// Is it a known name?
if v, ok := severityByName(value); ok {
threshold = v
} else {
v, err := strconv.Atoi(value)
if err != nil {
return err
}
threshold = severity(v)
}
logging.stderrThreshold.set(threshold)
return nil
}