Avoid using int as a parameter name. Also, rename frac to
fractional for consistency.
Addresses comment on CL 694896:
https://go-review.googlesource.com/c/go/+/694896/comment/a9723a07_8352e3aa/
Change-Id: Icedeecf65ad2f51d4e8d5bcf6e64c0eae9885dec
Reviewed-on: https://go-review.googlesource.com/c/go/+/699035
Auto-Submit: Sean Liao <sean@liao.dev> Reviewed-by: Cherry Mui <cherryyz@google.com> Reviewed-by: Michael Pratt <mpratt@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Sean Liao <sean@liao.dev> Reviewed-by: Joel Sing <joel@sing.id.au>