RFR: 8271287: jdk/jshell/CommandCompletionTest.java fails with "lists don't have the same size expected"

[Jan Lahoda]

JShell has a test that verifies the file completion understands `~` is a home directory, by testing the completions after:

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Commit messages:
 - 8271287: jdk/jshell/CommandCompletionTest.java fails with "lists don't have the same size expected"

Changes: https://git.openjdk.java.net/jdk/pull/5318/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=5318&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8271287
  Stats: 9 lines in 1 file changed: 8 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/5318.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/5318/head:pull/5318

PR: https://git.openjdk.java.net/jdk/pull/5318