[jdk17u-dev] RFR: 8295000: java/util/Formatter/Basic test cleanup

[Goetz Lindenmaier]

I backport this for parity with 17.0.7-oracle.

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Commit messages:
 - Backport 78763fc8e0d6940f1c85ff8705733b8e6ae8e945

Changes: https://git.openjdk.org/jdk17u-dev/pull/1157/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=1157&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8295000
  Stats: 312 lines in 20 files changed: 205 ins; 6 del; 101 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/1157.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev pull/1157/head:pull/1157

PR: https://git.openjdk.org/jdk17u-dev/pull/1157