records: refactoring fix
- Fixes refactoring problem introduced when renaming '_files' to '_documents' in e24b55e8f1c497112d016888c825cbe276cf303c.
Signed-off-by: Lars Holm Nielsen <lars.holm.nielsen@cern.ch>
Reviewed-by: Jiri Kuncar <jiri.kuncar@cern.ch>