runtime: fix typo in loadFactor comment
runtime: fix typo in loadFactor comment

Fixes #38174

Change-Id: Iacdbbcd0b4586302daf082e59d833b7aa58b1a6a
GitHub-Last-Rev: f0c96819ebb9928879a03957244f2de655708cbb
GitHub-Pull-Request: golang/go#38191
Reviewed-on: https://go-review.googlesource.com/c/go/+/226758
Reviewed-by: Alberto Donizetti <90b16103a35511ced020676f3544f17117fb4c92@gmail.com>

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