func (l CiaoNullLogger) Errorf(format string, v ...interface{}) {
}
Errorf no logging done
package clogger
type CiaoLog interface {
	V(int32) bool
	Infof(string, ...interface{})
	Warningf(string, ...interface{})
	Errorf(string, ...interface{})
}
type CiaoNullLogger struct{}
func (l CiaoNullLogger) V(level int32) bool {
	return false
}
func (l CiaoNullLogger) Infof(format string, v ...interface{}) {
}
func (l CiaoNullLogger) Warningf(format string, v ...interface{}) {
}