[8u60] request for approval: 8058930: GraphicsEnvironment.getHeadlessProperty() does not work for AIX

[Volker Simonis]

Hi,

could you please approve the backport of the following simple fix to jd8u-dev:

8058930: GraphicsEnvironment.getHeadlessProperty() does not work for AIX

Bug: https://bugs.openjdk.java.net/browse/JDK-8058930
Webrev (8u-dev): http://cr.openjdk.java.net/~simonis/webrevs/2015/8058930_8u/
Original Webrev (jdk9): http://cr.openjdk.java.net/~luchsh/JDK-8058930.2/
Review: http://mail.openjdk.java.net/pipermail/awt-dev/2014-September/008562.html

The webrev for 8u-dev just adapts the source location to the structure
before the "modular source change".

Thanks,
Volker