Description of problem:

Import of file into configuration channel fails.

Version-Release number of selected component (if applicable):
rhncfg-client-5.9.7.2-1.el5

How reproducible:
Entirely

Steps to Reproduce:
1.  Use webui to set a config file for import.
2.  Run rhn_check on the client.
  
Actual results:

XML-RPC error while talking to https://swserver/CONFIG-MANAGEMENT: cannot marshal None unless allow_none is enabled
Traceback (most recent call last):
  File "/usr/share/rhn/config_client/rpc_cli_repository.py", line 120, in put_files
    self.system_id, action_id, params)
  File "/usr/share/rhn/config_client/rpc_cli_repository.py", line 51, in rpc_call
    (self, method_name) + params)
  File "/usr/share/rhn/config_common/repository.py", line 365, in rpc_call
    sys.exit(2)
SystemExit: 2

File does not get imported.

Expected results:

File gets imported into sandbox, and no error is printed.

Additional info:

Both client and server are CentOS 5.4.