Bug 10667: (follow-up) fix reference to UT library in test case

This patch prevents a spurious test case failure if the
test database happens to already have a library whose
code is 'UT'.

Signed-off-by: Galen Charlton <gmc@esilibrary.com>

t/db_dependent/ILSDI_Services.t

@@ -38,7 +38,7 @@ unless ( GetBorrowercategory('UT') ) {
 }
 
 # Create branch
-unless ( GetBranchDetail('DEMO') ) {
+unless ( GetBranchDetail('UT') ) {
     $dbh->do("INSERT INTO branches (branchcode,branchname) VALUES ('UT','Unit test library');");
 }