RFR: 8317742: ISO Starndard Date Format implementation consistency on DateTimeFormatter and String.format

[温绍锦]

On Tue, 3 Oct 2023 21:37:46 GMT, 温绍锦 <duke at openjdk.org> wrote:

> j.u.Formatter now prints "%tF" (iso standard date) and the result is incorrect when processing year < 0 or year > 9999

@cl4es could you please review my code? Thank you!

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

PR Comment: https://git.openjdk.org/jdk/pull/16033#issuecomment-1745811258