and

coverity#1438221 Argument cannot be negative
coverity#1438213 Argument cannot be negative
coverity#1438227 Argument cannot be negative
coverity#1438223 Argument cannot be negative
coverity#1438222 Argument cannot be negative
coverity#1438215 Improper use of negative value
coverity#1438220 Improper use of negative value
coverity#1438217 Improper use of negative value

Change-Id: I398ae9901b27f6b65f03aad03638939b5880a671
Reviewed-on: https://gerrit.libreoffice.org/58626
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>