add trim path

example/log.go

@@ -16,7 +16,7 @@ func main() {
 	log.Err(ctx, "error message", 42)
 	service(ctx, log.Log())
 
-	logger := log.New(log.WithJSONFormat()).With(log.WithSource(10))
+	logger := log.New(log.WithJSONFormat()).With(log.WithSource(10, log.TrimPath))
 	logger.AlertKV(ctx, "alert message new logger", field.String("string", "value"))
 	service(ctx, logger)
 }