minor fix in "oc get --help" text re. "list of common resources"
minor fix in "oc get --help" text re. "list of common resources"

because:

    $ 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'.

but:

    $ oc get
    You must specify the type of resource to get. Use "oc api-resources" for a complete list of supported resources.

    error: Required resource not specified.
    Use "oc explain <resource>" for a detailed description of that resource (e.g. oc explain pods).
    See 'oc get -h' for help and examples.

This brings it in line with kubectl:

    $ kubectl get --help
    Display one or many resources 
    (...)
    Use "kubectl api-resources" for a complete list of supported resources.
enj/origin,jeremyeder/origin,csrwng/origin,enj/origin,openshift/origin,tnozicka/origin,pweil-/origin,gabemontero/origin,Miciah/origin,nak3/origin,spadgett/origin,Miciah/origin,openshift/origin,mfojtik/origin,dinhxuanvu/origin,sjug/origin,tnozicka/origin,mahak/origin,pweil-/origin,soltysh/origin,csrwng/origin,jim-minter/origin,JacobTanenbaum/origin,sjug/origin,ironcladlou/origin,akram/origin,xiuwang/origin,sdminonne/origin,jim-minter/origin,gabemontero/origin,enj/origin,sallyom/origin,dinhxuanvu/origin,csrwng/origin,dinhxuanvu/origin,ingvagabund/origin,deads2k/origin,jeremyeder/origin,coreydaley/origin,tnozicka/origin,pecameron/origin,JacobTanenbaum/origin,sferich888/origin,tnozicka/origin,nak3/origin,jeremyeder/origin,soltysh/origin,mkumatag/origin,anpingli/origin,hroyrh/origin,xiuwang/origin,akram/origin,jsafrane/origin,ingvagabund/origin,openshift/origin,spadgett/origin,sdminonne/origin,bparees/origin,deads2k/origin,jeremyeder/origin,ironcladlou/origin,sallyom/origin,jim-minter/origin,tnozicka/origin,JacobTanenbaum/origin,ingvagabund/origin,jsafrane/origin,tnozicka/origin,Miciah/origin,pecameron/origin,gabemontero/origin,jsafrane/origin,spadgett/origin,hroyrh/origin,mkumatag/origin,anpingli/origin,xiuwang/origin,anpingli/origin,akram/origin,sferich888/origin,ironcladlou/origin,coreydaley/origin,pweil-/origin,dinhxuanvu/origin,sallyom/origin,sdminonne/origin,mahak/origin,mfojtik/origin,mahak/origin,coreydaley/origin,soltysh/origin,spadgett/origin,spadgett/origin,deads2k/origin,jeremyeder/origin,dinhxuanvu/origin,mfojtik/origin,sjug/origin,bparees/origin,hroyrh/origin,sferich888/origin,mkumatag/origin,nak3/origin,bparees/origin,pecameron/origin