RFR: 8315844: $LSB_RELEASE is not defined before use

[Erik Joelsson]

On Thu, 3 Apr 2025 10:04:59 GMT, Magnus Ihse Bursie <ihse at openjdk.org> wrote:

> When running configure on WSL, the following error message is printed, instead of proper Linux environment info:
> 
> 
>     /build/.configure-support/generated-configure.sh: line 13102: -d: command not found 
> 
> 
> This is due to us calling `$LSB_RELEASE -d`, but LSB_RELEASE is not yet defined at that point in time. Fix this by moving the LSB_RELEASE check forward.

Marked as reviewed by erikj (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/24409#pullrequestreview-2742007104