[jdk19] RFR: 8289252: Recommend Locale.of() method instead of the constructor [v2]

[Roger Riggs]

On Tue, 28 Jun 2022 20:17:21 GMT, Naoto Sato <naoto at openjdk.org> wrote:

>> This is a leftover documentation fix to the deprecation of `Locale` constructors. `Locale.Builder` class had some texts that suggested using one of those constructors, which need to be replaced with a `Locale.of()` method. A corresponding CSR has also been drafted.
>
> Naoto Sato has updated the pull request incrementally with one additional commit since the last revision:
> 
>   added `lang` attribute to the snippet

Marked as reviewed by rriggs (Reviewer).

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PR: https://git.openjdk.org/jdk19/pull/85