RFR: 8332849: Update doc/testing.{md,html} (spelling and stale information)

[Erik Joelsson]

On Fri, 24 May 2024 09:15:51 GMT, Daniel Jeliński <djelinski at openjdk.org> wrote:

>> Update the testing doc to remove some stale information (AOT_MODULES, removed in [JDK-8264805](https://bugs.openjdk.org/browse/JDK-8264805)) and fix some spelling issues.
>> 
>> Testing: tier1
>
> doc/testing.html line 366:
> 
>> 364: to setting <code>JTREG_JOBS=1 JTREG_TIMEOUT_FACTOR=8</code>, but using
>> 365: the keyword format means that the <code>JTREG</code> variable is parsed
>> 366: and verified for correctness, so <code>JTREG="TIMEOUT_FACTOR=8"</code>
> 
> this was a deliberate typo

Indeed, these two were intentional to demonstrate the error handling of the JTREG make variable.

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PR Review Comment: https://git.openjdk.org/jdk/pull/19375#discussion_r1613429776