Unscoped saml auth error message refers to invalid option os-auth-type

[Hugh Saunders]

When attempting to list available projects at a federated service provider without using an appropriate auth plugin, the error message says that --os-auth-plugin should be used. This is incorrect, the option is now --os-auth-type.

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# openstack federation project list
ERROR: openstack This command requires the use of an unscoped SAML authentication plugin. Please use argument --os-auth-plugin with one of the following plugins: v3unscopedsaml, v3unscopedadfs, v3oidc
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This error message is the only reference to this option:

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python-openstackclient# grep -ri os-auth-plugin .
./openstackclient/identity/v3/unscoped_saml.py: '--os-auth-plugin with one of the following '
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[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/204543
Committed: https://git.openstack.org/cgit/openstack/python-openstackclient/commit/?id=874c9212929204a6eb3c0dc70afd5ccea9794178
Submitter: Jenkins
Branch: master

commit 874c9212929204a6eb3c0dc70afd5ccea9794178
Author: Hugh Saunders <email address hidden>
Date: Wed Jul 22 11:49:58 2015 +0100

    Fix --os-auth-plugin in auth_with_unscoped_saml

    The error message refers to --os-auth-plugin which is not a valid
    option. This patch changes that to --os-auth-type.

    Change-Id: I02ec0b7855131180bb8c674051930ebb51cb7303
    Closes-Bug: #1477083