Improved diagnostic output: when the build fails because a package cannot be cloned into the build drive, it says which package and the repo source and destination. Improved caching logic, so that it doesn't depend on network availability as much. Improved indentation.

<?xml version="1.0"?>

<project name="SF-PACKAGE-REFS">

  <path id="sf.spec.system.definition.files">
    <fileset dir="${sf.spec.job.drive}/" casesensitive="false">
      <include name="${sf.spec.systemdefinition.location}"/>
    </fileset>
  </path>
  
</project>