Bug 21281: Correct t/db_dependent/Creators/Lib.t failures

Bug 21281: Correct t/db_dependent/Creators/Lib.t failures

TEST PLAN
---------
1) apply first patch
2) kshell kohadev
3) prove -r -v t/db_dependent/Creators/
   -- failures
4) apply this patch
5) repeat 2,3
   -- no failures
6) run koha qa test tools

Signed-off-by: Chris Cormack <chris@bigballofwax.co.nz>
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
(cherry picked from commit 78124100ec6708de99bea3e4e181da3897130d0e)

Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>