[jdk17u-dev] RFR: 8289797: tools/launcher/I18NArgTest.java fails on Japanese Windows environment

[Martin Doerr]

Backport of [JDK-8289797](https://bugs.openjdk.org/browse/JDK-8289797).

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Commit messages:
 - Backport a11477ce259d6d2a053117a2300ebb171145cfde

Changes: https://git.openjdk.org/jdk17u-dev/pull/1646/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=1646&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8289797
  Stats: 51 lines in 1 file changed: 26 ins; 3 del; 22 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/1646.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/1646/head:pull/1646

PR: https://git.openjdk.org/jdk17u-dev/pull/1646