RFR: JDK-8295236: Update JavaDoc in javafx.geometry.Point3D [v5]

[Douglas Held]

On Wed, 19 Oct 2022 12:34:15 GMT, Douglas Held <duke at openjdk.org> wrote:

>> The JavaDoc for equals had a copy/paste error. I normalized the text based on the JavaDoc for method java.awt.Point#equals. ~~I also changed formatting in the method signatures of equals(), hashCode() and toString().~~
>> 
>> For good measure, some kind of copy/paste detection should probably be added to the many automated checks. For the entire OpenJDK project.
>
> Douglas Held has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Update Point3D.java
>   
>   Per review

I think there's something else of quality worth discussing here. Is `==` appropriate given the values under comparison are `double`?

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PR: https://git.openjdk.org/jfx/pull/913