Description of problem:
In custom %pre/%post scripts bogus chars will show up at the end of the line,
which will cause bash to get confused and not konw what to do.  If you 'wget'
the kickstart and pull the kickstart in vi, you'll see something like this:

%post
(^M
echo "What is my shell?"^M
echo $SHELL^M
echo "running ls /etc/sysconfig/rhn"^M
ls /etc/sysconfig/rhn^M
echo "About to run perl"^M
perl -npe 's/useGPG=1/useGPG=0/g' -i /etc/sysconfig/rhn/up2date^M
echo "running grep"^M
grep -i gpg /etc/sysconfig/rhn/up2date^M
echo "about to run up2date"^M
up2date osad rhncfg-actions^M


Note the ^M's cause bash to fail. 

Version-Release number of selected component (if applicable):
rhn-satellite-4.1.0-136-redhat-linux-as-i386-4-embedded-oracle.iso

How reproducible:
Everytime

Steps to Reproduce:
1. Create a kickstart profile
2. Create custom %post or %pre
3. Add commands to it, make sure there are carriage returns
4. wget http://<host>/kickstart/ks/label/<profile>
5. vi <profile>
6. Scroll down to the %pre or %post section.

Actual results:
^M ending all added lines

Expected results:
Clean text