HIG fixes for dbaccess

Change-Id: Ib9ce9a28eec4343850158541375608d63fda8d19
Reviewed-on: https://gerrit.libreoffice.org/13050
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>