RFR [XXS] : 8241948: enhance list of environment variables printed in hs_err file

[Baesken, Matthias]

Hello, please review this small change .
It enhances the list of environment variables printed in hs_err file  by locale / timezone related
variables. They are often of interest in support cases.

Bug/webrev :

https://bugs.openjdk.java.net/browse/JDK-8241948

http://cr.openjdk.java.net/~mbaesken/webrevs/8241948.0/

Thanks, Matthias