exit-codes: any and no output generates sql syntax error.

[niedbalski]

$ ~/go/bin/repeat -c collections/charmed-k8s.yaml
INFO[2020-11-27 15:34:32] Loading collectors from configuration file: collections/charmed-k8s.yaml
INFO[2020-11-27 15:34:32] collection: kubeapi_server added
INFO[2020-11-27 15:34:32] collection: etcd added
INFO[2020-11-27 15:34:32] Scheduler timeout set to: 0.000000 seconds
INFO[2020-11-27 15:34:32] Scheduling run of etcd collector every 5.000000 secs
INFO[2020-11-27 15:34:32] Scheduling run of kubeapi_server collector every 5.000000 secs
INFO[2020-11-27 15:34:33] Running command for collector etcd
INFO[2020-11-27 15:34:33] Running command for collector kubeapi_server
ERRO[2020-11-27 15:35:08] near "to": syntax error

(near "to": syntax error)
[2020-11-27 15:35:08]

(no such table: main.)
[2020-11-27 15:35:08]