func (s *SyslogLogger) Errorf(format string, v ...interface{}) {
	s.w.Err(fmt.Sprintf(format, v...))
}
Errorf log content as Errorf and format
package xorm
import (
	"fmt"
	"log/syslog"
	"github.com/go-xorm/core"
)
var _ core.ILogger = &SyslogLogger{}
type SyslogLogger struct {
	w       *syslog.Writer
	showSQL bool
}
func NewSyslogLogger(w *syslog.Writer) *SyslogLogger {
	return &SyslogLogger{w: w}
}
func (s *SyslogLogger) Debug(v ...interface{}) {
	s.w.Debug(fmt.Sprint(v...))
}
func (s *SyslogLogger) Debugf(format string, v ...interface{}) {
	s.w.Debug(fmt.Sprintf(format, v...))
}
func (s *SyslogLogger) Error(v ...interface{}) {
	s.w.Err(fmt.Sprint(v...))
}