void addUserFile(File original, File dest) {
    addExistenceTest(original);
    addFile(original, dest);
  }
This class is used to automatically generate a restore script for a backup. It keeps a list of
files that were backed up, and a list of files that we should test for to avoid overriding when
we restore the backup.

<p>
It generates either a restore.sh for unix or a restore.bat for windows.
geode-core/src/main/java/org/apache/geode/internal/cache/backup/RestoreScript.java