The CLI error messages for users with reader role were not clear to the
operator and this change fixes this.
Test Plan:
PASS: In an AIO-SX with this change present, create a new openstack user
with reader role and through this user execute the commands:
fm alarm-list
fm alarm-delete <uuid>
fm event-suppress --alarm_id <alarm_id>
and check that the "alarm-list" command is executed without errors and
that the error message of the other commands changes from:
"HTTP Client Error (HTTP 403) (Request-ID: req-<req_id>)"
to:
"Error: Forbidden."
Story: 2010149
Task: 46620
Signed-off-by: Joao Victor Portal <Joao.VictorPortal@windriver.com>
Change-Id: I45007a7f5319ef0a0238a07d671a859b5081660a