[enterprise-4.6] Issue in file cli_reference/opm-cli.adoc

[ldojo]

Which section(s) is the issue in?

In the "Installing OPM" section (https://docs.openshift.com/container-platform/4.6/cli_reference/opm-cli.html#olm-installing-opm_opm-cli)

What needs fixing?

the command for extracting the opm binary is:
oc image extract registry.redhat.io/openshift4/ose-operator-registry:v4.6
-a ${REG_CREDS}
--path /usr/bin/registry/opm:.
--confirm

However, the path of the opm binary is /usr/bin/opm, not /usr/bin/registry/opm in that image. This works:
oc image extract registry.redhat.io/openshift4/ose-operator-registry:v4.6
-a ${REG_CREDS}
--path /usr/bin/opm:.
--confirm

[skrthomas]

This was fixed by this PR for this Bugzilla bug