REQ-2405: 添加日志

msg-notices/msg-notices-service/src/main/java/cn/axzo/msg/center/notices/service/impl/MnsLimiter.java

@@ -61,7 +61,7 @@ public class MnsLimiter {
                     props.getVerifyCodeLimitWindowMinutes(), limitCount);
         }
         if (alreadySendCount + 1 > limitCount) {
-            log.warn("{}, request={}", error, request);
+            log.warn("mns rate limited, {}, request={}", error, request);
             throw new ServiceException(ReturnCodeEnum.FAIL.getCode(), error);
         }
     }