HPCC-11019 Allow complaint about legacy COUNT to be ignored

Signed-off-by: Gavin Halliday <gavin.halliday@lexisnexis.com>
Merge pull request #5531 from ghalliday/issue11019

HPCC-11019 Allow complaint about legacy COUNT to be ignored

Reviewed-By: Jamie Noss <james.noss@lexisnexis.com>
Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>