[VOTE] KIP-1161: cleanup.policy shouldn't be empty

[黃竣陽]

Hello all

I would like to call a vote on KIP-1161: cleanup.policy shouldn't be empty

KIP:
<https://cwiki.apache.org/confluence/x/HArXF>

Discussion thread:
<https://lists.apache.org/thread/f8nmvq4cv6pwwvhdxkqhb102z8dlshdl>

Best Regards,
Jiunn-Yang