Options to Disable or filter for ASCII Art

**Is your feature request related to a problem? Please describe.**
I'm somewhat frustrated when the ASCII art is filling up the syslog every hour (more so when logcheck then emails it to me) [...]

**Describe the solution you'd like**
I'd like an option to disable the ascii art, even if its a local config only.

**Describe alternatives you've considered**
I am (trying) to write a regex to exclude it but i'm not super good at regex.

**Additional context**
I think its very cool and I like it, until it started sending emails, every hour. I understand it needs to log, but maybe contribute an ascii art filter to [https://salsa.debian.org/debian/logcheck], [https://launchpad.net/logcheck] or [https://launchpad.net/ubuntu/+source/logcheck]

首先定位扩展发出每小时 ASCII art 的位置，以及本地配置选项的处理方式。检查 logging 行为是否已有测试。完成的标准是：用户可以通过文档化的本地选项禁用或过滤 ASCII art，而不会影响扩展的其他 logging。

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