const crypto/tls.downgradeCanaryTLS11

3 uses

	crypto/tls (current package)
		common.go#L227: 	downgradeCanaryTLS11 = "DOWNGRD\x00"
		handshake_client.go#L360: 	tls11Downgrade := string(serverHello.random[24:]) == downgradeCanaryTLS11
		handshake_server.go#L232: 			copy(serverRandom[24:], downgradeCanaryTLS11)