RFR: 8300339: Run jtreg in the work dir [v2]

[Magnus Ihse Bursie]

> We had a test setup failure in our distributed test system where the process running jtreg crashed. This caused the hs_err file to end up in the root of the source tree. Dropping crash files in the source tree is bad practice and makes it harder to find such files. We should change the current working directory to the work/output dir before launching jtreg to help avoid this situation in the future.

Magnus Ihse Bursie has updated the pull request incrementally with one additional commit since the last revision:

  Adjust indentation

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Changes:
  - all: https://git.openjdk.org/jdk/pull/24452/files
  - new: https://git.openjdk.org/jdk/pull/24452/files/d2bbfe3a..90a76851

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=24452&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=24452&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/24452.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24452/head:pull/24452

PR: https://git.openjdk.org/jdk/pull/24452