Bug 16522: (follow-up) Fix variable in OPAC cart brief display

Bug 16522: (follow-up) Fix variable in OPAC cart brief display

Without this change records 773 entries with links in $w would
not display the title information, but just "No title".
With the variable fixed, now the host's title displays.

Signed-off-by: Heather Hernandez <heather_hernandez@nps.gov>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
(cherry picked from commit 980682bb9673b4dd2afd50b678c267d9e38774e1)
Signed-off-by: Jacob O'Mara <jacob.omara@ptfs-europe.com>