log: Show log level when logging to stdout
log: Show log level when logging to stdout

Fixes #38.

Signed-off-by: Pekka Enberg <add4fcd06328a394f0ad91feda7ee057316dc5ed@cloudius-systems.com>

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