pr# 12143 raco make -j 2, fix split-path's 'relative to byte-string conversion
pr# 12143 raco make -j 2, fix split-path's 'relative to byte-string conversion

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