Missing info in docs

Hi,

Here:

https://mariadb.com/kb/en/server-system-variables/#log_slow_filter

It lists all available config options, as well as listing each option and what it does.

Yet here:

https://mariadb.com/kb/en/server-system-variables/#log_queries_not_using_indexes

It says

"Mapped to log_slow_filter='not_using_index'"

However, "not_using_index" is not listed as a default, nor in the description of each option, nor as part of the "valid values", eg:

Valid Values: admin, filesort, filesort_on_disk, filesort_priority_queue, full_join, full_scan, query_cache, query_cache_miss, tmp_table, tmp_table_on_disk

1) Are there other 'valid values' missing from this doc subsection?

2) Please validate what the true default really is, and what all valid values actually are.

Thanks