limit: -1)
* C<max_size> - Maximum total size (in bytes) of historical entries to keep (default: value of
L</history_max_size>, no limit: -1)
-* C<max_age> - Maximum age (in days) of historical entries to keep (default: 365, no limit: -1)
+* C<max_age> - Maximum age (in days) of historical entries to keep (default: value of
+ L</maintenance_history_days>, no limit: -1)
=cut