RFR: 8055772 : (xxs) get_source.sh : version check assumes English localization

[Tim Bell]

Hi Mike:

> This is a very small fix suggested by bitter_fox which forces English localization for the 'hg version' message which is parsed by get_source.
>
> webrev: http://cr.openjdk.java.net/~mduigou/JDK-8055772/0/webrev/
> jbsbug: https://bugs.openjdk.java.net/browse/JDK-8055772

Looks good.  Approved.

> Reminder: 8055331 also still needs review:
>
> jbsbug: https://bugs.openjdk.java.net/browse/JDK-8055331
> webrev: http://cr.openjdk.java.net/~mduigou/JDK-8055331/0/webrev/

This also looks good.  Approved.

Tim