Fix arity bug in .tap's emit default.
Fix arity bug in .tap's emit default.

ab5tract/rakudo,salortiz/rakudo,raydiak/rakudo,labster/rakudo,sjn/rakudo,usev6/rakudo,LLFourn/rakudo,paultcochrane/rakudo,tbrowder/rakudo,awwaiid/rakudo,jonathanstowe/rakudo,MasterDuke17/rakudo,ugexe/rakudo,azawawi/rakudo,softmoth/rakudo,samcv/rakudo,nbrown/rakudo,ugexe/rakudo,ugexe/rakudo,dankogai/rakudo,jonathanstowe/rakudo,lucasbuchala/rakudo,Gnouc/rakudo,ungrim97/rakudo,nbrown/rakudo,labster/rakudo,paultcochrane/rakudo,LLFourn/rakudo,azawawi/rakudo,zostay/rakudo,paultcochrane/rakudo,usev6/rakudo,sjn/rakudo,sjn/rakudo,tbrowder/rakudo,rakudo/rakudo,ab5tract/rakudo,dankogai/rakudo,salortiz/rakudo,salortiz/rakudo,samcv/rakudo,dankogai/rakudo,Gnouc/rakudo,ugexe/rakudo,ab5tract/rakudo,awwaiid/rakudo,ab5tract/rakudo,samcv/rakudo,b2gills/rakudo,lucasbuchala/rakudo,Gnouc/rakudo,salortiz/rakudo,tbrowder/rakudo,paultcochrane/rakudo,zostay/rakudo,b2gills/rakudo,jonathanstowe/rakudo,ungrim97/rakudo,lucasbuchala/rakudo,ugexe/rakudo,rakudo/rakudo,LLFourn/rakudo,nbrown/rakudo,tony-o/rakudo,ungrim97/rakudo,dankogai/rakudo,tony-o/rakudo,salortiz/rakudo,azawawi/rakudo,awwaiid/rakudo,tbrowder/rakudo,softmoth/rakudo,zostay/rakudo,tony-o/rakudo,dankogai/rakudo,raydiak/rakudo,softmoth/rakudo,nbrown/rakudo,LLFourn/rakudo,tbrowder/rakudo,lucasbuchala/rakudo,tony-o/rakudo,MasterDuke17/rakudo,softmoth/rakudo,jonathanstowe/rakudo,labster/rakudo,awwaiid/rakudo,usev6/rakudo,sjn/rakudo,MasterDuke17/rakudo,samcv/rakudo,samcv/rakudo,azawawi/rakudo,rakudo/rakudo,b2gills/rakudo,rakudo/rakudo,labster/rakudo,rakudo/rakudo,Gnouc/rakudo,MasterDuke17/rakudo,raydiak/rakudo,LLFourn/rakudo,labster/rakudo,rakudo/rakudo,azawawi/rakudo,nbrown/rakudo,softmoth/rakudo,tony-o/rakudo,salortiz/rakudo,tbrowder/rakudo,lucasbuchala/rakudo,ungrim97/rakudo,sjn/rakudo,jonathanstowe/rakudo,usev6/rakudo,MasterDuke17/rakudo,ungrim97/rakudo,b2gills/rakudo,b2gills/rakudo,raydiak/rakudo,tony-o/rakudo,nbrown/rakudo,awwaiid/rakudo,labster/rakudo,Gnouc/rakudo,zostay/rakudo,MasterDuke17/rakudo,paultcochrane/rakudo,Gnouc/rakudo,usev6/rakudo,ab5tract/rakudo