db: adjust mutation print function
db: adjust mutation print function

Show the decorated key instead of the partition key, as it is a superset.

asias/scylla,capturePointer/scylla,wildinto/scylla,raphaelsc/scylla,avikivity/scylla,stamhe/scylla,shaunstanislaus/scylla,kjniemi/scylla,guiquanz/scylla,linearregression/scylla,gwicke/scylla,glommer/scylla,rluta/scylla,kjniemi/scylla,kjniemi/scylla,duarten/scylla,victorbriz/scylla,justintung/scylla,dwdm/scylla,victorbriz/scylla,respu/scylla,rluta/scylla,rentongzhang/scylla,tempbottle/scylla,senseb/scylla,tempbottle/scylla,respu/scylla,victorbriz/scylla,glommer/scylla,capturePointer/scylla,justintung/scylla,linearregression/scylla,senseb/scylla,scylladb/scylla,scylladb/scylla,gwicke/scylla,acbellini/scylla,justintung/scylla,capturePointer/scylla,kangkot/scylla,kangkot/scylla,raphaelsc/scylla,phonkee/scylla,bowlofstew/scylla,shaunstanislaus/scylla,dwdm/scylla,glommer/scylla,aruanruan/scylla,raphaelsc/scylla,eklitzke/scylla,acbellini/scylla,senseb/scylla,wildinto/scylla,avikivity/scylla,avikivity/scylla,scylladb/scylla,acbellini/scylla,tempbottle/scylla,asias/scylla,stamhe/scylla,linearregression/scylla,eklitzke/scylla,rluta/scylla,rentongzhang/scylla,phonkee/scylla,bowlofstew/scylla,aruanruan/scylla,asias/scylla,dwdm/scylla,eklitzke/scylla,phonkee/scylla,gwicke/scylla,bowlofstew/scylla,duarten/scylla,scylladb/scylla,aruanruan/scylla,shaunstanislaus/scylla,kangkot/scylla,guiquanz/scylla,respu/scylla,wildinto/scylla,duarten/scylla,guiquanz/scylla,stamhe/scylla,rentongzhang/scylla