Use better filename for test
Use better filename for test

So it doesn't leave trash around in rakudo's checkout if
`make test` is aborted at the wrong time.

lucasbuchala/rakudo,salortiz/rakudo,lucasbuchala/rakudo,MasterDuke17/rakudo,rakudo/rakudo,tony-o/rakudo,lucasbuchala/rakudo,MasterDuke17/rakudo,salortiz/rakudo,Gnouc/rakudo,tbrowder/rakudo,lucasbuchala/rakudo,tbrowder/rakudo,tony-o/rakudo,Gnouc/rakudo,MasterDuke17/rakudo,MasterDuke17/rakudo,Gnouc/rakudo,nbrown/rakudo,labster/rakudo,rakudo/rakudo,nbrown/rakudo,tony-o/rakudo,labster/rakudo,labster/rakudo,rakudo/rakudo,Gnouc/rakudo,salortiz/rakudo,tbrowder/rakudo,softmoth/rakudo,tbrowder/rakudo,nbrown/rakudo,tbrowder/rakudo,salortiz/rakudo,MasterDuke17/rakudo,salortiz/rakudo,nbrown/rakudo,tony-o/rakudo,labster/rakudo,softmoth/rakudo,lucasbuchala/rakudo,salortiz/rakudo,nbrown/rakudo,labster/rakudo,rakudo/rakudo,labster/rakudo,tbrowder/rakudo,tony-o/rakudo,MasterDuke17/rakudo,tony-o/rakudo,rakudo/rakudo,rakudo/rakudo,Gnouc/rakudo,softmoth/rakudo,nbrown/rakudo,Gnouc/rakudo,softmoth/rakudo,softmoth/rakudo