Bug 17022: Fix XSS in circ/branchtransfers.pl

Bug 17022: Fix XSS in circ/branchtransfers.pl

Test plan:
Enter the following in the barcode input:
    <script>alert('XSS')</script>

=> Without this patch you will see the alert
=> With this patch, no more alert

Signed-off-by: Chris Cormack <chrisc@catalyst.net.nz>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Brendan Gallagher <brendan@bywatersolutions.com>
(cherry picked from commit c63d0b311b5e7ba882d19b9b8a71838256de98cf)
Signed-off-by: Frédéric Demians <f.demians@tamil.fr>