raco setup: fix handling of 'lib paths in "info-cache.rktd"
raco setup: fix handling of 'lib paths in "info-cache.rktd"

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