This PR implements _JEP 413: Code Snippets in Java API Documentation_ for [java.text.MessageFormat](https://docs.oracle.com/en/java/javase/19/docs/api/java.base/java/text/class-use/MessageFormat.html).
Code examples using <pre> ... </pre> blocks are replaced with the @ snippet syntax where applicable. ------------- Commit messages: - Switch code blocks with snippet Changes: https://git.openjdk.org/jdk/pull/12001/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=12001&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8300093 Stats: 24 lines in 1 file changed: 12 ins; 0 del; 12 mod Patch: https://git.openjdk.org/jdk/pull/12001.diff Fetch: git fetch https://git.openjdk.org/jdk pull/12001/head:pull/12001 PR: https://git.openjdk.org/jdk/pull/12001
