Description of problem:
If a user attempts to register a client to a Candlepin server, they'll receive a variant of the following error:

[root@oldceremony tito]# subscription-manager-cli register --username=ssalevan --password=redhat
Traceback (most recent call last):
  File "/usr/sbin/subscription-manager-cli", line 69, in <module>
    sys.exit(abs(main() or 0))
  File "/usr/sbin/subscription-manager-cli", line 60, in main
    return managercli.CLI().main()
  File "/usr/share/rhsm/managercli.py", line 338, in main
    cmd.main()
  File "/usr/share/rhsm/managercli.py", line 67, in main
    self._do_command()
  File "/usr/share/rhsm/managercli.py", line 127, in _do_command
    self._write_consumer_cert(consumer)
  File "/usr/share/rhsm/managercli.py", line 115, in _write_consumer_cert
    consumerinfo['idCert']['pem'])
  File "/usr/share/rhsm/certlib.py", line 379, in __init__
    self.x509 = Certificate(certstring)
  File "/usr/share/rhsm/certificate.py", line 60, in __init__
    x509 = X509.load_cert_string(content)
  File "/usr/lib/python2.6/site-packages/M2Crypto/X509.py", line 655, in load_cert_string
    return load_cert_bio(bio, format)
  File "/usr/lib/python2.6/site-packages/M2Crypto/X509.py", line 639, in load_cert_bio
    raise X509Error(Err.get_error())
M2Crypto.X509.X509Error: 3077772992:error:0906D06C:PEM routines:PEM_read_bio:no start line:pem_lib.c:698:Expecting: CERTIFICATE

Version-Release number of selected component (if applicable):
git HEAD, 3/22 pull

How reproducible:
Always

Steps to Reproduce:
1. Build the latest subscription-manager code and install it
2. Attempt to register a client to a candlepin server
  
Actual results:
As above

Expected results:
Client registers successfully

Additional info: