[8u] RFR Backport of 8203324: Use out of scope in getMacOSXLocale of java_props_macosx.c:120

[Simon Tooke]

Backport request

I would like to request a backport of 8203324: (Use out of scope in
getMacOSXLocale of java_props_macosx.c:120).

This backport would increase buildability with newer toolchains on macOS
platforms.

The original patch does not import cleanly, because another issue [1]
partially addressed the problem.  There are two buffers that have the
same use-out-of-scope issue.  My patch addresses both buffers.  I am not
suggesting backporting the entire fix for 8160199, as it could involve a
change in behaviour to user code.

Thank you for your time,

-Simon

bug: https://bugs.openjdk.java.net/browse/JDK-8203324

original patch: http://hg.openjdk.java.net/jdk/jdk/rev/01e4ddc3c23f

modified webrev: 
http://cr.openjdk.java.net/~stooke/webrevs/jdk-8203324-jdk8u/webrev.01/webrev.jdk.01/

[1] https://bugs.openjdk.java.net/browse/JDK-8160199