[jdk17] RFR: 8269513: Clarify the spec wrt `useOldISOCodes` system property [v2]

[Lance Andersen]

On Mon, 28 Jun 2021 18:37:34 GMT, Naoto Sato <naoto at openjdk.org> wrote:

>> Please review this small doc change to the system property. Accompanying CSR has also been created.
>
> Naoto Sato has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Refined wording.

src/java.base/share/classes/java/util/Locale.java line 460:

> 458:  * back to that of before Java SE 17. If the system property is set to
> 459:  * {@code true}, those three current language codes are mapped to their
> 460:  * backward compatible forms. It is only read at Java runtime startup, so a

I had thought about some of some minor word smithing in your prior commit, but chose not to request a change.

In the above sentence,  It could be clearer what "It" is.  Perhaps something along the lines of:

This property is only read at Java runtime startup  and subsequents calls to ...."

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PR: https://git.openjdk.java.net/jdk17/pull/163