Extend leases lifetime
Sometimes it's useful to extend lifetime of existing leases. Right now when experimenting with example files, all of the leases are expired.
An option to extend lease lifetime could be useful. Here's a proposal: --extend-lease
, if specified without any parameters, would extend the lease to now + valid_lifetime. If --extend-lease was specified with a parameter (timestamp), the leases would be extended to (specified timestamp) + valid_lifetime.