<i18n dev> RFR: 6228794: java.text.ChoiceFormat pattern behavior is not well documented. [v3]

[Justin Lu]

> Please review this PR and associated [CSR](https://bugs.openjdk.org/browse/JDK-8314546) which expands on the `java.text.ChoiceFormat` specification regarding its pattern.
> 
> `j.text.ChoiceFormat` provides an example pattern in the class description, but beyond that it does not specify any well-defined syntax for creating a pattern. In addition, methods related to the pattern String are under-specified.
> 
> The wording for `getLimits()` and `getFormats()` was also adjusted, as there are other ways to set the limits and formats beyond the constructor.
> 
> The pattern syntax may be easier to view -> https://cr.openjdk.org/~jlu/api/java.base/java/text/ChoiceFormat.html

Justin Lu has updated the pull request incrementally with one additional commit since the last revision:

  Reflect Naoto's comments from 9/6

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/15392/files
  - new: https://git.openjdk.org/jdk/pull/15392/files/fd1cc831..bbb99eb4

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=15392&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=15392&range=01-02

  Stats: 41 lines in 1 file changed: 16 ins; 17 del; 8 mod
  Patch: https://git.openjdk.org/jdk/pull/15392.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/15392/head:pull/15392

PR: https://git.openjdk.org/jdk/pull/15392