Unix: Remove removed option from help

Also includes minor cleanup of help.
32 jobs from int-new in 4 minutes and 21 seconds (queued for 8 seconds)
Status Job ID Name Coverage
  Image
passed #215990
dind allowed to fail
docker_centos-6-amd64

00:00:17

passed #215991
dind allowed to fail
docker_centos-7-amd64

00:00:19

passed #215980
dind allowed to fail
docker_debian-7-amd64

00:00:21

passed #215984
dind allowed to fail
docker_debian-7-i386

00:00:22

passed #215981
dind allowed to fail
docker_debian-8-amd64

00:00:21

passed #215985
dind allowed to fail
docker_debian-8-i386

00:00:19

passed #215982
dind allowed to fail
docker_debian-9-amd64

00:00:21

passed #215986
dind allowed to fail
docker_debian-9-i386

00:00:20

passed #215983
dind allowed to fail
docker_debian-testing-amd64

00:00:22

passed #215987
dind allowed to fail
docker_debian-testing-i386

00:00:20

passed #215988
dind allowed to fail
docker_fedora-25-amd64

00:00:21

passed #215989
dind allowed to fail
docker_fedora-26-amd64

00:00:21

passed #215992
dind allowed to fail
docker_opensuse-42_3-amd64

00:00:21

passed #215993
dind allowed to fail
docker_ubuntu-14_04-amd64

00:00:19

passed #215994
dind allowed to fail
docker_ubuntu-16_04-amd64

00:00:21

 
  Build
passed #216001
docker linux amd64
build-centos-6-amd64

00:03:02

passed #216002
docker linux amd64
build-centos-7-amd64

00:02:59

passed #215995
docker linux amd64
build-debian-7-amd64

00:03:02

passed #216006
docker linux amd64
build-debian-7-i386

00:01:55

passed #215996
docker linux amd64
build-debian-8-amd64

00:03:02

passed #216007
docker linux amd64
build-debian-8-i386

00:02:44

passed #215997
docker linux amd64
build-debian-9-amd64

00:03:05

passed #216008
docker linux amd64
build-debian-9-i386

00:02:52

passed #215998
docker linux amd64
build-debian-testing-amd64

00:03:05

passed #216009
docker linux amd64
build-debian-testing-i386

00:02:55

passed #215999
docker linux amd64
build-fedora-25-amd64

00:03:05

passed #216000
docker linux amd64
build-fedora-26-amd64

00:03:04

passed #216010
freebsd amd64
build-freebsd-11-amd64

00:02:16

passed #216011
freebsd i386
build-freebsd-11-i386

00:01:46

passed #216003
docker linux amd64
build-opensuse-42_3-amd64

00:03:01

passed #216004
docker linux amd64
build-ubuntu-14_04-amd64

00:03:04

passed #216005
docker linux amd64
build-ubuntu-16_04-amd64

00:01:51