flake8: fix E305

9 jobs from pylint-fixes in 1 minute and 47 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Test
passed #185861
docker linux amd64
test:augeas

00:00:43

passed #185866
docker linux amd64
test:comparative:kresd

00:01:47

passed #185862
docker linux amd64
test:flake8

00:00:38

passed #185867
docker linux amd64
test:latest:kresd

00:01:26

passed #185863
docker linux amd64
test:pylint

00:00:41

passed #185864
docker linux amd64
test:rplint

00:00:38

passed #185869
docker linux amd64
test:sanity:pdnsrecursor

00:00:43

passed #185868
docker linux amd64
test:sanity:unbound

00:00:42

passed #185865
docker linux amd64
test:unittests

00:00:41