Use bytes.Equal instead of comparing bytes.Compare results to zero, avoid Yoda conditions, drop a redundant zero slice capacity, use strings.ReplaceAll, build acme error strings with a strings.Builder, and lowercase an error string in ocsp. No behavior changes. Change-Id: I5d2b3fa5c241adc75e61be0f2d2d7af1eb9e8d66 Reviewed-on: https://go-review.googlesource.com/c/crypto/+/803200 Reviewed-by: Roland Shoemaker <roland@golang.org> Auto-Submit: Roland Shoemaker <roland@golang.org> LUCI-TryBot-Result: golang-scoped@luci-project-accounts.iam.gserviceaccount.com <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Carlos Amedee <carlos@golang.org>