forked from amazingfate/loongoffice
replaced Len() with isEmpty() where appropriate Change-Id: I5a5847d6055f376fd5f86079aa1736541d790fff Reviewed-on: https://gerrit.libreoffice.org/1892 Reviewed-by: Norbert Thiebaud <nthiebaud@gmail.com> Tested-by: LibreOffice gerrit bot <gerrit@libreoffice.org>