fix len(searchTime)!=2 in esutil

liuxiaolong

2019-10-28 f6d2b5028770d7e83d2440dd547c7bf117a27465

 controllers/cameraPolygon.go

@@ -116,7 +116,7 @@
   if flag {
      util.ResponseFormat(c,code.Success,data)
   } else {
      util.ResponseFormat(c,code.ComError,data)
      util.ResponseFormat(c,code.ComError,"更新失败")
   }
}