HPCC-10793 Document FILEPOSITION(false)

Signed-off-by: JamesDeFabia <James.Defabia@LexisNexis.com>
HPCC-10793 Edit colspec so word fits in table

Signed-off-by: JamesDeFabia <James.Defabia@LexisNexis.com>
Merge pull request #5614 from JamesDeFabia/10793Docs_FILEPOSITION_false

HPCC-10793 Document FILEPOSITION(false)

Reviewed-by: Gavin Halliday <ghalliday@hpccsystems.com>