Previously, the index got out of sync with the actual config list. Invoked with lines:
- bad
- first
- bad
- second
the sanitization would first delete index 0 and then index 2, which would result in the output
- first
- bad
By reversing the list, we avoid that problem (though a filter() would be nicer)
When commit revisions are disabled, there will be no revision items returned.
Add note about setting ANSIBLE_PERSISTENT_COMMAND_TIMEOUT to a higer value to avoid timeouts.