RFR: JDK-8199428: install-file macro fails on filenames with space on Solaris

[Tim Bell]

Erik:

> This patch adds those EncodeSpace calls and makes all the test-make
> tests pass on Solaris.
>
> Bug: https://bugs.openjdk.java.net/browse/JDK-8199428
>
> Webrev: http://cr.openjdk.java.net/~erikj/8199428/webrev.01/

Looks good.

Tim