fix verification switch

sunty

2020-04-16 b7ce0659f5e04952c4ea8a6ebb714c5615017c3b

 tools/middleware/middleware.go

@@ -119,6 +119,7 @@
      }
   case config.StartScriptAsMaster:
      verificationMasterUrl := "http://" + ip + ":6333"
      fmt.Println("verificationMasterUrl: ", verificationMasterUrl)
      _, masterErr := http.Get(verificationMasterUrl)
      fmt.Println("masterErr", masterErr)
      if masterErr == nil {