[jdk21u-dev] RFR: 8325743: test/jdk/java/nio/channels/unixdomain/SocketOptions.java enhance user name output in error case

[Matthias Baesken]

8325743: test/jdk/java/nio/channels/unixdomain/SocketOptions.java enhance user name output in error case

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Commit messages:
 - Backport d0039960c4fdaf7704d06e1233865ea2e27a5d39

Changes: https://git.openjdk.org/jdk21u-dev/pull/350/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=350&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8325743
  Stats: 3 lines in 1 file changed: 1 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/350.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/350/head:pull/350

PR: https://git.openjdk.org/jdk21u-dev/pull/350