fix use of qw(...) in test case

qw(...) can no longer be used as parentheses as of Perl 5.17.0;
this was preventing MARC::Record's tests from passing in 5.17.x.

Signed-off-by: Galen Charlton <gmcharlt@gmail.com>
prepare for MARC::Record 2.0.5

Signed-off-by: Galen Charlton <gmcharlt@gmail.com>