Add extensive testing of "x" and "X" formats in sprintf
Add extensive testing of "x" and "X" formats in sprintf

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