No need to do a duplicate ~million calls to isRowQualified for trailing
empty data.

Change-Id: Id2840e1b5a9aae825aa67af9b4cedb32c3fcf527
Reviewed-on: https://gerrit.libreoffice.org/20851Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Kohei Yoshida <libreoffice@kohei.us>