test/bench/go1: fix size for RegexpMatchMedium_32
test/bench/go1: fix size for RegexpMatchMedium_32

Change-Id: Idc67abb95248bc010820a89dd6096a2da334e723
GitHub-Last-Rev: ae9014b011efb2692f853888c1860920d1acc3cb
GitHub-Pull-Request: golang/go#47254
Reviewed-on: https://go-review.googlesource.com/c/go/+/335189
Reviewed-by: Rob Pike <4dc7c9ec434ed06502767136789763ec11d2c4b7@golang.org>
Run-TryBot: Rob Pike <4dc7c9ec434ed06502767136789763ec11d2c4b7@golang.org>
TryBot-Result: Go Bot <66cb808b70d30c07676d5e946fee83fd561249e5@golang.org>
Trust: Alberto Donizetti <90b16103a35511ced020676f3544f17117fb4c92@gmail.com>

cloudflare/go,golang/go,golang/go,nawawi/go,CAFxX/go,nawawi/go,CAFxX/go,golang/go,cloudflare/go,cloudflare/go,cloudflare/go,CAFxX/go,CAFxX/go,golang/go,CAFxX/go,nawawi/go,cloudflare/go,CAFxX/go,nawawi/go,cloudflare/go,nawawi/go,golang/go,CAFxX/go,CAFxX/go,golang/go,nawawi/go,cloudflare/go,cloudflare/go,golang/go,nawawi/go,nawawi/go,golang/go