auth_token PKI logs ERRORS on first cert download

[Dan Prince]

Using python-keystoneclient Havana... I'm seeing LOG ERROR's at startup in all of my OpenStack service log files when using PKI.
Here is a snippet from /var/log/nova/api.log for example:

------
2013-06-10 11:47:13.099 21076 ERROR keystoneclient.common.cms [-] Verify error: Error opening certificate file /tmp/keystone-signing-nova/signing_cert.pem
139951350372192:error:02001002:system library:fopen:No such file or directory:bss_file.c:169:fopen('/tmp/keystone-signing-nova/signing_cert.pem','r')
139951350372192:error:2006D080:BIO routines:BIO_new_file:no such file:bss_file.c:172:

2013-06-10 11:47:13.117 21076 ERROR keystoneclient.common.cms [-] Verify error: Error loading file /tmp/keystone-signing-nova/cacert.pem
139837526517600:error:02001002:system library:fopen:No such file or directory:bss_file.c:169:fopen('/tmp/keystone-signing-nova/cacert.pem','r')
139837526517600:error:2006D080:BIO routines:BIO_new_file:no such file:bss_file.c:172:
139837526517600:error:0B084002:x509 certificate routines:X509_load_cert_crl_file:system lib:by_file.c:279:
------

Everything works fine... and PKI is working correctly. We should not be logging ERROR's under these circumstances.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/32433

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/38185

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/38185
Committed: http://github.com/openstack/python-keystoneclient/commit/2bb6137f48b7516a6870dd86700d09d8aa977caf
Submitter: Jenkins
Branch: master

commit 2bb6137f48b7516a6870dd86700d09d8aa977caf
Author: Adam Young <email address hidden>
Date: Mon Jul 22 13:50:46 2013 -0400

    no logging on cms failure

    Don't log in the keystoneclient.common.cms as there are some errors
    that are expected. Instead, log in the middleware

    bug 1189539

    Change-Id: I1e80e2ab35e073d9b8d25fd16b31c64c34cd001d