RFR: 8297525: jdk/jshell/ToolBasicTest.java fails after JDK-8295984

[Jan Lahoda]

The expected text uses a platform newline, but the actual text seems to always use `'\n'`. Sorry for that.

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Commit messages:
 - 8297525: jdk/jshell/ToolBasicTest.java fails after JDK-8295984

Changes: https://git.openjdk.org/jdk/pull/11330/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=11330&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8297525
  Stats: 3 lines in 1 file changed: 0 ins; 2 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/11330.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/11330/head:pull/11330

PR: https://git.openjdk.org/jdk/pull/11330