[jdk17u-dev] RFR: 8283062: Uninitialized warnings in libgtest with GCC 11.2

[Goetz Lindenmaier]

I backport this for parity with 17.0.8-oracle.

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Commit messages:
 - Backport a244051a8c967039d7639afcaf83f7d92af49613

Changes: https://git.openjdk.org/jdk17u-dev/pull/1219/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=1219&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8283062
  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/1219.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/1219/head:pull/1219

PR: https://git.openjdk.org/jdk17u-dev/pull/1219