Converting it to use a subclass of the Maintenance class ensures that a nice help text is present when passing --help. It will also help phan-taint-check-plugin detect that certain issues are false positive.
Relavent files are:
- Scribunto/includes/engines/LuaCommon/lualib/ustring/make-table.php
- Scribunto/includes/engines/LuaCommon/lualib/ustring/make-normalization-table.php