Description of problem:
If the system is banned, "rhn-check -l" throws traceback. I guess this could be handled more gracefully ...

Version-Release number of selected component (if applicable):
rhn-setup-1.0.0-39.el6.noarch

How reproducible:
(haven't tried, the ban ended)

Steps to Reproduce:
1. do something (?) nasty to get the system banned
2. rhn-channel -l
  
Actual results:
.qa.[root@ppcp-6s-0z-v1 tps]# rhn-channel -l
Traceback (most recent call last):
  File "/usr/sbin/rhn-channel", line 98, in <module>
    main()
  File "/usr/sbin/rhn-channel", line 86, in main
    channels = map(lambda x: x['label'], getChannels().channels())
  File "/usr/share/rhn/up2date_client/rhnChannel.py", line 99, in getChannels
    up2dateChannels = s.up2date.listChannels(up2dateAuth.getSystemId())
  File "/usr/share/rhn/up2date_client/rhnserver.py", line 52, in __call__
    raise self.__exception_from_fault(f)
up2date_client.up2dateErrors.AbuseError: 
Error Message:
    Abuse of Service detected for server ppcp-6s-0z-v1.ss.eng.bos.redhat.com (1016580813)
Error Class Code: 49
Error Class Info: 
     You are getting this error because RHN has detected an abuse of
     service from this system and account. This error is triggered when
     your system makes too many connections to Red Hat Network. This
     error can not be triggered under a normal use of the Red Hat Network
     service as configured by default on Red Hat Linux.

     The Red Hat Network services for this system will remain disabled
     until you will reduce the RHN network traffic from your system to
     acceptable limits.

     Please log into RHN and visit https://rhn.redhat.com/help/contact.pxt
     to contact technical support if you think you have received this
     message in error.



Expected results:
(the same error messages without the traceback at the beginning)

Additional info: