fixed MQ serverMode lost default topic

[enqbs]

尊敬的作者您好，MQ模式启动触发以下场景问题。”默认topic和动态topic同时存在，指定需同步的数据库.数据表走指定的动态topic，未指定的数据库.数据表统一走默认topic“，结果经过源码DEBUG发现只要动态topic存在会把topic字符串中所有的”.“替换成”_“导致默认topic丢失。
配置：

修改前输出日志：

我的建议是动态topic与默认topic匹配直接返回默认topic。
修改后代码：

修改后输出日志：

希望得到采纳，感谢。

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[agapple]

default也需要统一采用转义处理，避免不同MQ之间的差异

[enqbs]

default也需要统一采用转义处理，避免不同MQ之间的差异

好的。虽然四个MQ我都改了，但保持原样我认为也没问题。