RFR: 8290497: some tests in com/sun/jdi fail on localized Windows platform

[KIRIYAMA Takuya]

Failed tests call java.lang.ProcessBuilder in direct, so not used command options specified when jtreg command run. 
To run non-localized tests, the locale options should be added in ProcessBuilder.

Could you review this fix, please?

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Commit messages:
 - 8290497: some tests in com/sun/jdi fail on localized Windows platform

Changes: https://git.openjdk.org/jdk/pull/9549/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=9549&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8290497
  Stats: 3 lines in 2 files changed: 0 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/9549.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/9549/head:pull/9549

PR: https://git.openjdk.org/jdk/pull/9549