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

[温绍锦]

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

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Commit messages:
 - fix format ""%tF" (iso standard date) not correct

Changes: https://git.openjdk.org/jdk/pull/16033/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=16033&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8317742
  Stats: 32 lines in 2 files changed: 30 ins; 1 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/16033.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/16033/head:pull/16033

PR: https://git.openjdk.org/jdk/pull/16033