RFR: 8372851: Modify java/io/File/GetXSpace.java to print path on failure of native call

[Brian Burkhalter]

Change the test to print the pathname if `getSpace0` fails with a `RuntimeException`.

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Commit messages:
 - 8372851: Modify java/io/File/GetXSpace.java to print path on failure of native call

Changes: https://git.openjdk.org/jdk/pull/28592/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=28592&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8372851
  Stats: 16 lines in 1 file changed: 13 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/28592.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/28592/head:pull/28592

PR: https://git.openjdk.org/jdk/pull/28592