cocoa: fix line height in `list-box%'   Closes PR 11822
cocoa: fix line height in `list-box%'
  Closes PR 11822

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