Better to update generator usage in command line "oc expose -h" help info too. Thanks!
Related PR: https://github.com/openshift/origin/pull/12925
Fixed in https://github.com/openshift/origin/pull/12925.
This has been merged into ocp and is in OCP v3.5.0.32 or newer.
Verified in oc v3.5.0.32. 'oc expose -h' has good info for generator now as the PR shows. Thanks!
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2017:0884