var testing.fuzzDuration

4 uses

	testing (current package)
		fuzz.go#L23: 	flag.Var(&fuzzDuration, "test.fuzztime", "time to spend fuzzing; default is to run indefinitely")
		fuzz.go#L32: 	fuzzDuration     durationOrCountFlag
		fuzz.go#L352: 			fuzzDuration.d,
		fuzz.go#L353: 			int64(fuzzDuration.n),