Description of problem:
Including the %include directive in the %pre or %post section of a kickstart file followed by a file name produces an error during parsing.

Version-Release number of selected component (if applicable):
Fedora 17

How reproducible:
Always

Steps to Reproduce:
1. In either the %pre or %post section of a kickstart, copy a file from an external source to the local filesystem. For example,

  mkdir /tmp/mnt
  mount -t nfs 1.2.3.4:/export /tmp/mnt
  cp /tmp/mnt/foofile /
 
2. Include the file from step 1 in the kickstart with the %include directive:

  %include /foofile

* Add '--erroronfail' to the %pre or %post line being used to more easily see the error.
  
Actual results:
The installation will halt with an error similar to the following:

  fg: no job control

Expected results:
File text should be included into the ks as documented in:

http://fedoraproject.org/wiki/Anaconda/Kickstart#Chapter_4._Pre-installation_Script

Additional info:

* Error is generated whether file actually exists or not.