RFR: CODETOOLS-7903623: Test may fail depending on environment.

[Jonathan Gibbons]

Please review a trivial patch to ignore the setting of `LC_CTYPE` (or lack thereof) when running the rerun tests.

For me, the variable is set in a terminal window in IDEA (and cannot be unset) and is not set in a normal Terminal window on macOS. The variable is not germane to the test and  is now ignored during the comparison.

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Commit messages:
 - CODETOOLS-7903623: Test may fail depending on environment.

Changes: https://git.openjdk.org/jtreg/pull/179/files
 Webrev: https://webrevs.openjdk.org/?repo=jtreg&pr=179&range=00
  Issue: https://bugs.openjdk.org/browse/CODETOOLS-7903623
  Stats: 1 line in 1 file changed: 1 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jtreg/pull/179.diff
  Fetch: git fetch https://git.openjdk.org/jtreg.git pull/179/head:pull/179

PR: https://git.openjdk.org/jtreg/pull/179