Description of problem:
Recently I got a traceback mail from spacewalk generated during registration and the traceback mail contain info about request rhnreg_ks did. One of the fields is "Headers passed in: -> user-agent: rhn.rpclib.py/$Revision$" which do not seem correct.


Version-Release number of selected component (if applicable):
rhnlib-2.5.51-1.el5 or rhnlib-2.5.22-12.el6.noarch


How reproducible:
always


Steps to Reproduce:
1. Check which headers rhnreg_ks sends to the server when calling registration.new_system (I have provoked the traceback by attempting to register system when I do not have enough entitlements for that - this seems to be a different error which will be probably reported as different bug)


Actual results:
Exception reported from <fqdn>
Time: Tue Mar 27 20:52:44 2012
Exception type spacewalk.common.rhnException.rhnException
Exception while handling function registration.new_system
Request object information:
URI: /XMLRPC
Remote Host: <fqdn>
Server Name: <fqdn>:443
Headers passed in:
	Accept-Encoding: identity
	Content-Length: 1612
	Host: <fqdn>:443
	content-type: text/xml
	user-agent: rhn.rpclib.py/$Revision$
	x-client-version: 1
	x-info: RPC Processor (C) Red Hat, Inc (version $Revision$)
	x-rhn-client-capability: caneatCheese(1)=1,packages.extended_profile(2)=1,reboot.reboot(1)=1,packages.verify(1)=1,packages.runTransaction(1)=1,packages.update(2)=2,packages.rollBack(1)=1
	x-rhn-transport-capability: follow-redirects=3
	x-transport-info: Extended Capabilities Transport (C) Red Hat, Inc (version $Revision$)
	x-up2date-version: 1.7.14-1.el5
[...]

Specifically check "user-agent", "x-info" and "x-transport-info" which have "$Revision$" in it.


Expected results:
IMO that string should be expanded into some version or number.