Heartbeat doesn't include 'circuit stats since last time'
This message is shown every 30 minutes, as per my HeartbeatPeriod.
[NOTICE] Heartbeat: Tor's uptime is xxx hours, with xxx circuits open. I've sent xxx and received xxx GB.
This message is not (and I don't know how to control how frequently it is shown).
[NOTICE] Circuit handshake stats since last time: x/x TAP, x/x NTor.
How can I make the latter message as frequent/infrequent as I like? Can it be merged into the HeartbeatPeriod?