cmd/bent: rename count to counterFlag
cmd/bent: rename count to counterFlag

Change-Id: Ia3420b4ffcf4bbc7ad8b957f472415487f66022b
Reviewed-on: https://go-review.googlesource.com/c/benchmarks/+/290730
TryBot-Result: Go Bot <66cb808b70d30c07676d5e946fee83fd561249e5@golang.org>
Trust: Jeremy Faller <b3f594e10a9edcf5413cf1190121d45078c62290@golang.org>
Run-TryBot: Jeremy Faller <b3f594e10a9edcf5413cf1190121d45078c62290@golang.org>
Reviewed-by: David Chase <ae171625adc8645b8b79b7e405a6da5aba5341e0@google.com>

golang/benchmarks,golang/benchmarks