[racket] Regular expression documentation

At Sat, 3 Sep 2011 13:42:51 -0300, Rodolfo Carvalho wrote:
> I found out that the documentation for
> regexp-match<http://docs.racket-lang.org/reference/regexp.html#(def._((quote._~
> 23~25kernel)._regexp-match))>
> talk
> about an "output-prefix", but apparently there's no such thing.
> 
> What does that refers too?

It looks like a documentation mistake. Maybe when I added
`input-prefix' I considered adding something symmetric for the end (but
then I changed the wrong half of `input-prefix' to arrive at
`output-prefix' instead of `input-suffix'?). I don't think that such an
argument to `regexp-match' ever existed.