dndlocal.t: test 1 isolated failure

[chrstphrchvz]

http://www.cpantesters.org/cpan/report/739ee28a-72ed-1014-8029-8b7a14c79095

# Test 1 got: <UNDEF> (t/dndlocal.t at line 104)
#   Expected: "Label2" (Unexpected value for dest label)
#  t/dndlocal.t line 104 is: ok($destItem, 'Label2', "Unexpected value for dest label");
t/dndlocal.t .................. 
Failed 1/1 subtests 

I am not aware of how this could happen or what should be done about it.