Added a mention of 'oc get' to 'oc get --help'

[oatmealraisin]

Fixes #9326

@juanvallejo @fabianofranz @deads2k @liggitt ptal?

New output:

 $ oc get --help
Display one or many resources

Possible resources include builds, buildConfigs, services, pods, etc. To see a
list of common resources, use 'oc get'. Some resources may omit
advanced details that you can see with '-o wide'.  If you want an even more
detailed view, use 'oc describe'.

[juanvallejo]

@fabianofranz LGTM

[liggitt]

fails man page tests, also not a blocker, so post-1.3

[oatmealraisin]

Would anyone object to adding the same verbage to oc describe? Same situation there. @juanvallejo @liggitt

[fabianofranz]

LGTM, just need to add generated docs from hack/update-generated-docs.sh. Merge will happen after the 1.3 release.

[smarterclayton]

Needs updated docs still

[bparees]

@oatmealraisin bump, needs docs gen.

[bparees]

hm. actually looks like they are up to date now.
[merge]

[bparees]

flake #11008
[merge]

[bparees]

flake #11008
[merge]

[openshift-bot]

Evaluated for origin merge up to 8394d29

[openshift-bot]

continuous-integration/openshift-jenkins/merge SUCCESS (https://ci.openshift.redhat.com/jenkins/job/test_pr_origin/9028/) (Image: devenv-rhel7_5042)