RFR: JDK-8196879: Forgot to add file in JDK-8196803

[Tim Bell]

On 02/06/18 10:16, Erik Joelsson wrote:
> When pushing JDK-8196803 just now, I forgot to add the zlib.h file.
> Please review this correction.
>
> Bug: https://bugs.openjdk.java.net/browse/JDK-8196879
>
> Webrev: http://cr.openjdk.java.net/~erikj/8196879/webrev.01/

Looks good.

/Tim