const runtime.waitReasonZero

3 uses

	runtime (current package)
		runtime2.go#L988: 	waitReasonZero                  waitReason = iota // ""
		runtime2.go#L1018: 	waitReasonZero:                  "",
		traceback.go#L894: 	if gpstatus == _Gwaiting && gp.waitreason != waitReasonZero {