RFR: 8339570: Add Tidy build support for JDK tests [v11]

[Nizar Benalla]

On Thu, 17 Oct 2024 15:10:29 GMT, Magnus Ihse Bursie <ihse at openjdk.org> wrote:

>> make/autoconf/lib-tests.m4 line 330:
>> 
>>> 328:       AC_MSG_RESULT([yes])
>>> 329:       AC_MSG_CHECKING([for tidy version])
>>> 330:       TIDY_VERSION=`$ECHO $tidy_output | $SED -e 's/.*version //g'`
>> 
>> Looks like `TIDY_VERSION` isn't "exported", should it be lower-case?
>
> We're not really consistant on that usage. In fact, I'd say that most variables are upper case, regardless of how "local" their use is, and the lower case variant is a minority. So I'd say it's up to Nizar; if he wants to change this he can, otherwise it can stay upper case.

I lowercased it just to be safe.

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PR Review Comment: https://git.openjdk.org/jdk/pull/21341#discussion_r1806186836