Expiration times logging improvements, timers limiting logging, upper limiting of ENDS Expire timers.
Log proper expiration times after a refresh (possibly limited by 'refresh/retry/expire-min/max-interval' options), never log expire timer for a non-expiring zone (e.g. a catalog zone), write to the log, when a timer limiting occurs, and allow upper limiting of EDNS Expire options.
Edited by Daniel Salzman