Update port-lib.scrbl (minor typo)

This commit is contained in:
Hashim Muqtadir 2018-02-16 20:18:40 +05:00 committed by Vincent St-Amour
parent 26ed4b246c
commit 95dab07e47

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@ -824,7 +824,7 @@ that becomes available on @racket[in] is immediately transferred to
This function is often called from a ``background'' thread to
continuously pump data from one stream to another.
If multiple @racket[out]s are provided, case data from @racket[in] is
If multiple @racket[out]s are provided, data from @racket[in] is
written to every @racket[out]. The different @racket[out]s block
output to each other, because each block of data read from @racket[in]
is written completely to one @racket[out] before moving to the next