RFR JDK-8165640: Enhance jar tool to allow module-info in versioned directories but not in base in modular multi-release jar files

[Mandy Chung]

> On Feb 10, 2017, at 6:06 PM, Xueming Shen <xueming.shen at oracle.com> wrote:
> 
> updated to use stream style.
> 
> https://bugs.openjdk.java.net/browse/JDK-8165640
> http://cr.openjdk.java.net/~sherman/8165640/webrev

Looks okay.  A minor point is that you can use foreach instead of toArray but it would need to catch IOException inside foreach block.

Mandy