Comment 2 for bug 1487115

Reviewed: https://review.openstack.org/215221
Committed: https://git.openstack.org/cgit/openstack/keystone/commit/?id=02f8576ddf2fca67849171aa7a1b41ebcfa90ded
Submitter: Jenkins
Branch: master

commit 02f8576ddf2fca67849171aa7a1b41ebcfa90ded
Author: Marek Denis <email address hidden>
Date: Thu Aug 20 18:12:39 2015 +0200

    Ensure ephemeral user's user_id is url-safe

    As a principle, an attribute ``user_id`` should always be url safe and
    we should make sure this is the case especially for the federated
    authentication workflow as user name and id can be provided directly
    from the user (either hardcoded in the mapping rule or passed as a
    parameter from the assertion).

    Change-Id: I7256a5e4d31d3c2e55fe956fb0170452bb241078
    Closes-Bug: #1487115