The code is now more robust and will accept illegal arguments. Change-Id: I43ae82b953cea845fb170aa7b6e8d42470ad4e5e Reviewed-on: https://gerrit.libreoffice.org/14580 Tested-by: Jenkins <ci@libreoffice.org> Reviewed-by: Caolán McNamara <caolanm@redhat.com> Tested-by: Caolán McNamara <caolanm@redhat.com>