const crypto/tls.alertCloseNotify

7 uses

	crypto/tls (current package)
		alert.go#L30: 	alertCloseNotify                  alert = 0
		alert.go#L67: 	alertCloseNotify:                  "close notify",
		conn.go#L720: 		if alert(data[1]) == alertCloseNotify {
		conn.go#L847: 	case alertNoRenegotiation, alertCloseNotify:
		conn.go#L855: 	if err == alertCloseNotify {
		conn.go#L1477: 		c.closeNotifyErr = c.sendAlertLocked(alertCloseNotify)
		quic.go#L521: 		return c.sendAlertLocked(alertCloseNotify)