Error when no new message

[smoreauBX]

Hi,
Very nice job with this program.

I have some bug,
When I want to run kafka-dump and there are no new message in the topic, I have this message :

INFO[2023-01-09T10:35:01Z] Limit: 0 - Concurrent consumers: 1
INFO[2023-01-09T10:35:01Z] [Worker-0] Exporting to: TEST/kafka-dump-feature2.dump
INFO[2023-01-09T10:35:01Z] Subscribed topics: [feature-2]
INFO[2023-01-09T10:35:31Z] Waited for 30s but no messages any more! Finish!
INFO[2023-01-09T10:35:32Z] Flushed data to file
panic: Failed to commit messages: Local: No offset stored

goroutine 8 [running]:
github.com/huantt/kafka-dump/impl.(*Exporter).Run.func2()
	/root/go/pkg/mod/github.com/huantt/[email protected]/impl/exporter.go:60 +0x6f
github.com/huantt/kafka-dump/impl.(*Exporter).Run(0xc0002d64c0)
	/root/go/pkg/mod/github.com/huantt/[email protected]/impl/exporter.go:73 +0x774
github.com/huantt/kafka-dump/cmd.CreateExportCommand.func1.1(0x0?)
	/root/go/pkg/mod/github.com/huantt/[email protected]/cmd/exporter.go:92 +0x4fb
created by github.com/huantt/kafka-dump/cmd.CreateExportCommand.func1
	/root/go/pkg/mod/github.com/huantt/[email protected]/cmd/exporter.go:63 +0x35e