[crac] RFR: CRaC: Fix fds opened for logging

[Jan Kratochvil]

CRaC: Fix fds opened for logging

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Commit messages:
 - +testcase
 - CRaC: Fix fds opened for logging

Changes: https://git.openjdk.org/crac/pull/113/files
 Webrev: https://webrevs.openjdk.org/?repo=crac&pr=113&range=00
  Stats: 88 lines in 6 files changed: 88 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/crac/pull/113.diff
  Fetch: git fetch https://git.openjdk.org/crac.git pull/113/head:pull/113

PR: https://git.openjdk.org/crac/pull/113