Bug 14120: Fixing t/db_dependent/Auth.t noise

Bug 14120: Fixing t/db_dependent/Auth.t noise

TEST PLAN
---------
1) $ prove t/db_dependent/Auth.t
   -- warnings
2) Apply this patch
3) $ prove t/db_dependent/Auth.t
   -- only one specific type of warning
4) Apply bug 5010 patch
5) $ prove t/db_dependent/Auth.t
   -- noisy is eliminated
6) koha qa test tools.

Signed-off-by: Bernardo Gonzalez Kriegel <bgkriegel@gmail.com>
With patch only one warn
With 5010 no more warns
No errors

Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>