racket/enter: another submodule repair
racket/enter: another submodule repair

When a submodule is required from the load handler and no such
module is available, the load handler is not supposed to raise
an exception.

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