[jdk21u] RFR: 8311285: report some fontconfig related environment variables in hs_err file

[Matthias Baesken]

8311285: report some fontconfig related environment variables in hs_err file

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Commit messages:
 - Backport 0ef03f122866f010ebf50683097e9b92e41cdaad

Changes: https://git.openjdk.org/jdk21u/pull/17/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk21u&pr=17&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8311285
  Stats: 2 lines in 1 file changed: 2 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk21u/pull/17.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u.git pull/17/head:pull/17

PR: https://git.openjdk.org/jdk21u/pull/17