fix：缺失问题修改

service/message_mail_box.go

@@ -162,7 +162,7 @@ func (b MessaggeService) UserList(in *messagecenter.UserReq) (data *[]map[string
 							d.create_time,
 							a.unread as number,
 							c.timestamp,
-							"" as phone
+							"" as phone,
 							b.groupMember
 						FROM
 							socialize_chat_group_person a