var testing.matchBenchmarks

5 uses

	testing (current package)
		benchmark.go#L26: 	matchBenchmarks = flag.String("test.bench", "", "run only benchmarks matching `regexp`")
		benchmark.go#L32: 	matchBenchmarks *string
		benchmark.go#L508: 	if len(*matchBenchmarks) == 0 {
		benchmark.go#L519: 		match:  newMatcher(matchString, *matchBenchmarks, "-test.bench"),
		testing.go#L1420: 	if !testRan && !exampleRan && *matchBenchmarks == "" {