RFR: 8300794: Use @snippet in java.util:i18n [v3]

[Justin Lu]

> Please review this javadoc only change which uses `@snippet` and `@linkplain` in i18n related util packages.

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

  Use elipsis replacement in snippet tag recommended in JDK PR #13957

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Changes:
  - all: https://git.openjdk.org/jdk/pull/13920/files
  - new: https://git.openjdk.org/jdk/pull/13920/files/e56955e1..e15cacb3

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=13920&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=13920&range=01-02

  Stats: 3 lines in 1 file changed: 0 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/13920.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/13920/head:pull/13920

PR: https://git.openjdk.org/jdk/pull/13920