RFR: 8333599: Improve description of \b matcher in j.u.r.Pattern

[Raffaello Giulietti]

On Fri, 7 Jun 2024 00:23:10 GMT, Stuart Marks <smarks at openjdk.org> wrote:

>> A documentation-only change to match the original intent and the implemented behavior.
>
> Oh, this needs a CSR too, since it's a change to a normative assertion. Should be pretty simple though.

@stuart-marks A [CSR](https://bugs.openjdk.org/browse/JDK-8333782) has been added.

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PR Comment: https://git.openjdk.org/jdk/pull/19583#issuecomment-2158661490