Bug 5817: Follow-up fixing callnum: on staff results

Bug 5817: Follow-up fixing callnum: on staff results

This patch changes the call number links on the staff results page so that
searching will work. The underlying problem described by bug 5274 remains an
issue, but this fixes some of the more problematic symptoms.

Signed-off-by: Jared Camins-Esakov <jcamins@bywatersolutions.com>
Signed-off-by: Nicole C. Engard <nengard@bywatersolutions.com>
Signed-off-by: Chris Cormack <chrisc@catalyst.net.nz>
(cherry picked from commit b853b79001ceefc897eac781a6ebf28e7cc29c85)

Signed-off-by: Chris Nighswonger <chris.nighswonger@gmail.com>