RFR: Update LogCompilation junit to 4.13.2

[Andrea Cosentino]

I don't have an account on the issue tracker for creating an issue to track this one.

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Commit messages:
 - Update LogCompilation junit to 4.13.2

Changes: https://git.openjdk.java.net/shenandoah/pull/72/files
 Webrev: https://webrevs.openjdk.java.net/?repo=shenandoah&pr=72&range=00
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/shenandoah/pull/72.diff
  Fetch: git fetch https://git.openjdk.java.net/shenandoah pull/72/head:pull/72

PR: https://git.openjdk.java.net/shenandoah/pull/72