fix typo (patch from Gustavo Massaccesi)

Closes PR 12489

Merge to 5.2.1
(cherry picked from commit 96dea8c732)
This commit is contained in:
Matthew Flatt 2012-01-15 17:04:38 -07:00 committed by Ryan Culpepper
parent a5f236d18a
commit df9c2f8d7b

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@ -431,7 +431,7 @@ not be used if @racket[vec] is immutable.}
[prop-val any] ... ...) [prop-val any] ... ...)
(and/c box? chaperone?)]{ (and/c box? chaperone?)]{
Like @racket[prox-box], but with support for immutable boxes. The Like @racket[impersonate-box], but with support for immutable boxes. The
@racket[unbox-proc] procedure must produce the same value or a @racket[unbox-proc] procedure must produce the same value or a
chaperone of the original value, and @racket[set-proc] must produce chaperone of the original value, and @racket[set-proc] must produce
the same value or a chaperone of the value that it is given. The the same value or a chaperone of the value that it is given. The