HPCC-11100 Fix typo in example for STD.System.Thorlib.Daliserver

Signed-off-by: JamesDeFabia <James.Defabia@LexisNexis.com>
Merge pull request #5597 from JamesDeFabia/11100_DOCS_typo_STD.System.Thorlib.Daliserver

HPCC-11100 Fix typo in example for STD.System.Thorlib.Daliserver

Reviewed-by: Gavin Halliday <ghalliday@hpccsystems.com>