Bug 9320 Pending reserves report should not show waiting items

Bug 9320 Pending reserves report should not show waiting items

    Test plan : * chose an item reserved by multiple patrons.
                * return the item and confirm reservation =>
                  item is waiting to be picked up
                * run circ/pendingreserves.pl
                    => without patch, this item is shown in the list
                    => with the patch, only really available items are show.

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Works according to test plan. The title with one waiting item appeared
in pending holds report before the patch, doesn't appear after the
patch.

Signed-off-by: Jonathan Druart <jonathan.druart@biblibre.com>
Signed-off-by: Jared Camins-Esakov <jcamins@cpbibliography.com>
Signed-off-by: Chris Cormack <chris@bigballofwax.co.nz>