Use a single sprintf instead of ten, and don't use interim OStringBuffer to convert to OUString in the end. Change-Id: I5dcbec85d64af3a30b4bb64f12090e5320421013 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/129734 Tested-by: Jenkins Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>