// Errorf logs a message at level Error on the standard logger.
551490
func (logger *Logger) Errorf(format string, args ...interface{}) {
	if logger.std.Level >= lg.ErrorLevel {
		logger.header(1).Errorf(format, args...)
	}
}
1046867
func Errorf(t TestingT, err error, msg string, args ...interface{}) bool {
	if h, ok := t.(tHelper); ok {
		h.Helper()
	}
	return Error(t, err, append([]interface{}{msg}, args...)...)
}
430147
func (cl *CallbackLogger) Errorf(format string, v ...interface{}) {
	cl.ErrorDepth(1, fmt.Sprintf(format, v...))
}
1340282
func (entry *Entry) Errorf(format string, args ...interface{}) {
	if entry.lgEntry.Logger.Level >= lg.ErrorLevel {
		entry.lgEntry.WithFields(entry.fields).Errorf(format, args...)
	}
}
486094
func (s *SimpleLogger) Errorf(format string, v ...interface{}) {
	if s.level <= core.LOG_ERR {
		s.ERR.Output(2, fmt.Sprintf(format, v...))
	}
	return
}
1339129
func (g *GRPCLogger) Errorf(format string, args ...interface{}) {
	g.Error(fmt.Sprintf(format, args...))
}
354879
func (l *leveledLoggerPrintferShim) Errorf(format string, v ...interface{}) {
	if l.level >= printferLevelError {
		l.logger.Printf(format+"\n", v...)
	}
}
56777
func Errorf(format string, args ...interface{}) (err error) {
	err = fmt.Errorf(format, args...)
	trace := wrapWithDepth(err, 2)
	trace.AddUserMessage(format, args...)
	return trace
}
333561
func Errorf(format string, a ...interface{}) error {
	return New(fmt.Sprintf(format, a...))
}
176399
func (f *FileLogger) Errorf(format string, args ...interface{}) {
	f.outputf(errorLog, format, args...)
}
448841
func Errorf(format string, args ...interface{}) error {
	return &fundamental{
		msg:   fmt.Sprintf(format, args...),
		Stack: stack.New(1),
	}
}
355399
func Errorf(format string, args ...interface{}) {
	var s string
	if len(args) > 0 {
		s = fmt.Sprintf(format, args...)
	} else {
		s = format
	}
	klog.ErrorDepth(1, fmt.Sprintf(logFmt, s))
}
473422
func (v *Context) Errorf(format string, args ...interface{}) {
	v.Error(errors.Reason(format, args...).Err())
}
747218
func (s *StanLogger) Errorf(format string, v ...interface{}) {
	s.executeLogCall(func(log Logger, format string, v ...interface{}) {
		log.Errorf(format, v...)
	}, format, v...)
}
65220
func (l *Logger) Errorf(format string, v ...interface{}) {
	l.Fprint(l.flags, LEVEL_ERROR, 2, fmt.Sprintf(format, v...), nil)
}
1252184
func (me *Logger) Errorf(format string, v ...interface{}) {
	me.printf(Perror, format, v...)
}
387875
func Errorf(format string, v ...interface{}) {
	f := extractFields(&v)
	if f != nil {
		// Let user add a %v at the end of the message when fields are passed to satisfy go vet
		l := len(format)
		if l > 2 && format[l-2] == '%' && format[l-1] == 'v' {
			format = format[0 : l-2]
		}
	}
	std.OutputF(LevelError, 2, fmt.Sprintf(format, v...), f)
}