HPCC-10215 Slight better error report on failed expiry delete

Signed-off-by: Jake Smith <jake.smith@lexisnexis.com>
Merge pull request #5860 from jakesmith/hpcc-10215

HPCC-10215 Slight better error report on failed expiry delete

Reviewed-by: Gavin Halliday <ghalliday@hpccsystems.com>