lspicer17

run_poller: UNKNOWN:Timer list shutdown

2

I'm seeing these logs in stderr from docker hosts running some gRPC queries using this client: ``` E0921 17:38:25.652816051 244657 backup_poller.cc:124] run_poller: UNKNOWN:Timer list shutdown {created_time:"2022-09-21T17:38:25.652619086+00:00"} E0921 19:14:08.230445287 322145 backup_poller.cc:124]...