Fix #3653

Author: bkcsoft

user.go

@@ -11,7 +11,7 @@ import (
 // User represents a API user.
 type User struct {
 	ID        int64  `json:"id"`
-	UserName  string `json:"username"`
+	UserName  string `json:"login"`
 	FullName  string `json:"full_name"`
 	Email     string `json:"email"`
 	AvatarUrl string `json:"avatar_url"`