Pause at end of recovery

These days we have pause_at_recovery_target, which lets us pause when
we reach a PITR target. Is there a particular reason we don't have a
way to pause at end of recovery if we *didn't* specify a target -
meaning we let it run until the end of the archived log? While it's
too late to change the target, I can see a lot of usescases where you
don't want it to be possible to make changes to the database again
until it has been properly verified - and keeping it up in readonly
mode in that case can be quite useful...

-- 
 Magnus Hagander
 Me: http://www.hagander.net/
 Work: http://www.redpill-linpro.com/