Description of problem:
Adding hosts to "ipa service-add-host" with hostname in capital letters works as expected, however, removing the same hostname by specifying it in capital letters fails.

Version-Release number of selected component (if applicable):

freeipa-server-2.0-0.2011020720git7be1275.fc14.x86_64
freeipa-admintools-2.0-0.2011020720git7be1275.fc14.x86_64


How reproducible:
Always

Steps to Reproduce:
1.# ipa service-add-host --hosts=T.EXAMPLE.COM vpn/gsrf14ipas.testrelm@TESTRELM
  Principal: vpn/gsrf14ipas.testrelm@TESTRELM
  Managed by: gsrf14ipas.testrelm, t.example.com
-------------------------
Number of members added 1
-------------------------

2.# ipa service-remove-host --hosts=T.EXAMPLE.COM vpn/gsrf14ipas.testrelm@TESTRELM
  Principal: vpn/gsrf14ipas.testrelm@TESTRELM
  Managed by: gsrf14ipas.testrelm, t.example.com
---------------------------
Number of members removed 0
---------------------------
3.
  
Actual results:
Number of members removed 0
Workaround is to remove the host by specifying it in small letters.

Expected results:
# ipa service-remove-host --hosts=T.EXAMPLE.COM vpn/gsrf14ipas.testrelm@TESTRELM
  Principal: vpn/gsrf14ipas.testrelm@TESTRELM
  Managed by: gsrf14ipas.testrelm
---------------------------
Number of members removed 1
---------------------------

Hostnames specified in capital letters should be removed successfully.

Additional info: