Breaking: #67946 - LowLevel Cleaner Scripts Removed 

See forge#67946

Description 

The shell scripts for checking and cleaning a TYPO3 installation for its integrity have been removed from the Core. They were previously located under typo3/cleaner_check.sh and typo3/cleaner_fix.sh. The contents have been moved to the documentation for EXT:lowlevel in the respective README.rst.

Impact 

Any regular system jobs that execute these scripts will exit with the script not found anymore.

Affected Installations 

Any installation that uses the shell scripts above from the command line directly.

Migration 

If such a list is needed, create the files manually again in your system (outside your document root). The code can be found inside EXT:lowlevel/README.rst.