RFR: 8299441: Fix typos in some test files under core-libs component

Mon Jan 2 10:03:29 UTC 2023

Can I please get a review of this change which fixes the final few typos in test files in the core-libs area? This addresses the remaining core-libs related typos from the original PR https://github.com/openjdk/jdk/pull/10029.

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Commit messages:
 - 8299441: Fix typos in some test files under core-libs component

Changes: https://git.openjdk.org/jdk/pull/11810/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=11810&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8299441
  Stats: 5 lines in 4 files changed: 0 ins; 0 del; 5 mod
  Patch: https://git.openjdk.org/jdk/pull/11810.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/11810/head:pull/11810

PR: https://git.openjdk.org/jdk/pull/11810