make StepLogger work again

e.g. provide real information about step in question
9 jobs for step_logger in 1 minute and 22 seconds
Status Job ID Name Coverage
  Test
passed #17272
docker linux amd64
test:python2:comparative:kresd

00:01:14

passed #17270
docker linux amd64
test:python2:pep8

00:00:33

passed #17271
docker linux amd64
test:python2:pylint

00:00:48

passed #17275
docker linux amd64
test:python3:comparative:kresd

00:01:22

passed #17276
docker linux amd64
test:python3:latest:kresd

00:01:12

passed #17273
docker linux amd64
test:python3:pep8

00:00:35

passed #17274
docker linux amd64
test:python3:pylint

00:00:54

passed #17278
docker linux amd64
test:python3:sanity:pdnsrecursor

00:00:34

passed #17277
docker linux amd64
test:python3:sanity:unbound

00:00:40