[jdk21u-dev] RFR: 8348323: Corrupted timezone string in JVM crash log

[Dhamoder Nalla]

Add a error check to "wcstombs" otherwise the "buf" prints junk or corrupted string.

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Commit messages:
 - Backport 2bef5b4a877f4d3bc766558b8782b7b57dee79a8

Changes: https://git.openjdk.org/jdk21u-dev/pull/1382/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1382&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8348323
  Stats: 2 lines in 1 file changed: 0 ins; 1 del; 1 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1382.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1382/head:pull/1382

PR: https://git.openjdk.org/jdk21u-dev/pull/1382