When running the oc adm node-image create command, in case of error the tool returns a panic    

 4.19, 4.18   

Execute oc adm node-image create command with some wrong param, for example by not having the nodes-config.yaml or by not specifying a kubeconfig

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 A stack trace is printed in the console output   

    The exact reason of the error should be reported

    It looks like a typo added in commit 0601c2e, this line https://github.com/openshift/oc/blob/1719de833ae8e8a272ff55ca2a80489e6c791d92/pkg/cli/admin/nodeimage/create.go#L180 should return the error instead of nil