gossip: Fix string serializer in messaging_service
gossip: Fix string serializer in messaging_service

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