bug 5243: avoid crash when saving authority records on certain setups

bug 5243: avoid crash when saving authority records on certain setups

This does not seem to occur on all platforms - C4::Search
exports SimpleSearch() by default - but adding the 'C4::Search::'
qualifier certainly doesn't hurt things.

Patch by Fridolyn Somers <fridolyn.somers@gmail.com>

Signed-off-by: Galen Charlton <gmcharlt@gmail.com>
Signed-off-by: Chris Cormack <chrisc@catalyst.net.nz>
Signed-off-by: Chris Nighswonger <chris.nighswonger@gmail.com>