SYN Port Scan, List Open Only

[Esben Stien <b0ef () esben-stien name>]

I'm using this command: 

sudo nmap -sS -p 3389 10.0.13.170 --initial-rtt-timeout 100ms --max-retries 1

..and I get: 

Starting Nmap 6.40 ( http://nmap.org ) at 2015-03-21 13:22 CET
Nmap scan report for 10.0.13.170
Host is up (0.000062s latency).
PORT     STATE  SERVICE
3389/tcp closed ms-wbt-server

Nmap done: 1 IP address (1 host up) scanned in 0.40 seconds

I only want to have output, if the port is open. 

Is there any way to do this with nmap?

I don't want to pipe the output to anything else. I want nmap to just
probe the port with syn and output if the port is open. 

-- 
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