fix typo

`that do` → `that does`
2017-05-30 08:05:40 -07:00 · 2017-05-30 08:05:40 -07:00 · 4c5f66ff4a
commit 4c5f66ff4a
parent ea778e1dd9
1 changed files with 1 additions and 1 deletions
--- a/racket/collects/ffi/unsafe.rkt
+++ b/racket/collects/ffi/unsafe.rkt
@ -547,7 +547,7 @@
        ;; disappear from the inputs.
        (unless use-expr?
          (if (and (pair? no-expr?) (car no-expr?) expr)
-            (err "got an expression for a custom type that do not use it"
+            (err "got an expression for a custom type that does not use it"
                 clause)
            (set! expr (void))))
        (when use-expr?