func NewLocalEventSink() *LocalEventSink {
	logger := log.New(os.Stderr, "[LocalEventSink] ",
		log.Ldate|log.Ltime|log.Lshortfile)
	return &LocalEventSink{logger}
}
New Logs local sink.
package log
import (
	"errors"
	"github.com/stitchfix/flotilla-os/clients/httpclient"
	"log"
	"os"
	"time"
)
type EventSink interface {
	Receive(keyvals ...interface{}) error
}
type LocalEventSink struct {
	logger *log.Logger
}