[jdk21u-dev] RFR: 8354057: Odd debug output in -Xlog:os+container=debug on certain systems

[Goetz Lindenmaier]

I backport this for parity with 21.0.11-oracle.

-------------

Commit messages:
 - Backport 4478a99e3111798c2e461c7e769a69672f187a6a

Changes: https://git.openjdk.org/jdk21u-dev/pull/2551/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=2551&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8354057
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/2551.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/2551/head:pull/2551

PR: https://git.openjdk.org/jdk21u-dev/pull/2551