crypto/elliptic: change a variable name that have the same name as keywords
Change the variable name from byte to b, and use range over int to
simplify the loop.
Change-Id: I8855053c26ce798311f12505cd5edf21d7caf1f5
GitHub-Last-Rev:
70c80545df29c897ea81f115334fcc64503c0eb1
GitHub-Pull-Request: golang/go#74736
Reviewed-on: https://go-review.googlesource.com/c/go/+/690135
Reviewed-by: qiu laidongfeng <2645477756@qq.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>