fdo#41350 "Expand Single Word" only shown active for "Last line: Justified"

Change-Id: Ibe90d041f15fd007026676ea626c672a9805b263
Reviewed-on: https://gerrit.libreoffice.org/10656
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>