RFR: 8253253: Binutils tar ball extension update to gz

[Erik Joelsson]

On Tue, 15 Sep 2020 04:54:04 GMT, Junyuan Zheng <github.com+53073448+junyzheng at openjdk.org> wrote:

> Our infra team found this error when building DevKit with GCC 4.9.2. The binutils version is 2.25, and an *.xz doesn't
> exist on https://ftp.gnu.org/pub/gnu/binutils.  Hence, we would like to submit a PR to update *.xz to *.gz.
> We have confirmed that *.gz exists for all binutil version.

Marked as reviewed by erikj (Reviewer).

The change is ok, but why would you need such an old devkit? We build with gcc 9.2 and are in the process of upgrading
to 10.2. We have been lax with removing old configs for devkit generation.

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PR: https://git.openjdk.java.net/jdk/pull/162