install-core-dist: Use $*PERL, not $*PERL6
install-core-dist: Use $*PERL, not $*PERL6

It seems likely nobody's tried this script where `git describe` won't
work.

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