[jdk21u] RFR: 8314883: Java_java_util_prefs_FileSystemPreferences_lockFile0 write result errno in missing case

[Matthias Baesken]

8314883: Java_java_util_prefs_FileSystemPreferences_lockFile0 write result errno in missing case

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Commit messages:
 - Backport 97b94cb1cdeba00f4bba7326a300c0336950f3ec

Changes: https://git.openjdk.org/jdk21u/pull/214/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk21u&pr=214&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8314883
  Stats: 3 lines in 1 file changed: 1 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk21u/pull/214.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u.git pull/214/head:pull/214

PR: https://git.openjdk.org/jdk21u/pull/214