cli: spicec does not pass cert_file #953582

Change-Id: I23dd056aaa69abfb39e812f70e8daa406e6ccd5c
Bug-Url: https://bugzilla.redhat.com/show_bug.cgi?id=953582
Signed-off-by: Michael Pasternak <mpastern@redhat.com>
cli: Error in "update network --cluster-identifier --usages-usage"

When running update network command, in cluster context,
including --usages-usage option causes an error.

Change-Id: I9a3347c4cd7397f0e58814c33bbf4b18e07547f2
Bug-Url: https://bugzilla.redhat.com/950993
Signed-off-by: Ravi Nori <rnori@redhat.com>