fix swagger

liuxiaolong

2020-06-28 9a88e95e0c6bce22a82cba042564fc9650babb96

 extend/util/requtil.go

@@ -3,8 +3,8 @@
import (
   "bytes"
   "encoding/json"
   "fmt"
   "github.com/ajg/form"
   "golang.org/x/tools/go/ssa/interp/testdata/src/fmt"
   "io"
   "io/ioutil"
   "net/http"