Bug 18762: Remove some warnings from Search.t

Bug 18762: Remove some warnings from Search.t

Note that some are caused by CGI, see bug 18632

Test plan:
Confirm there are less warnings with this patch applied

Signed-off-by: Lee Jamison <ldjamison@marywood.edu>
Signed-off-by: Mark Tompsett <mtompset@hotmail.com>
(cherry picked from commit 6d78d7a6108afc75546f933d601b04fde8b76c9b)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>
(cherry picked from commit f7bcec64644ea76aa3bff71fec41fb57d4442c13)
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>