add clarifying comment to kversion for why one flexible was removed
@@ -342,7 +342,8 @@ func Tip() Versions {
v[22]++ // 3 init producer id KAFKA-8710 fecb977b25 KIP-360
v[9]++ // 7 offset fetch KAFKA-9346 6da70f9b95 KIP-447
- // more flexible versions, KAFKA-9420 0a2569e2b99 KIP-482, 6 bumped
+ // more flexible versions, KAFKA-9420 0a2569e2b99 KIP-482
+ // 6 bumped, then sasl handshake reverted later in 1a8dcffe4
v[36]++ // 2 sasl authenticate
v[37]++ // 2 create partitions
v[39]++ // 2 renew delegation token
