Fixed build host setup erroring out

Cause as yet unknown.
Happens near the end of the script after policy evaluates OK and cleanup() is called on purpose but still the entire script fails.

Ticket: none
Changelog: none

Author: craigcomstock

ci/setup-cfengine-build-host.sh

@@ -90,6 +90,7 @@ function cleanup()
   fi
   ls -l /home
   chown -R jenkins /home/jenkins
+  echo "Done with cleanup()"
 }
 
 trap cleanup ERR
@@ -227,6 +228,8 @@ cp -a masterfiles/* /var/cfengine/inputs/
   grep -i error: promises.log && exit 1
   /var/cfengine/bin/cf-agent -KIf "$policy" -b cfengine_build_host_setup | tee -a promises.log
   grep -i error: promises.log && exit 1
+  echo "Done evaluating policy. End of promies.log:"
+  tail promises.log
 )
 
 cleanup