adjust 'raco planet structure's implementation so it matches recent changes to the fold-plt-archive function
adjust 'raco planet structure's implementation so it matches
recent changes to the fold-plt-archive function

mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket