[jdk17u-dev] RFR: 8276837: [macos]: Error when signing the additional launcher

[Goetz Lindenmaier]

I backport this for parity with 17.0.5-oracle.

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Commit messages:
 - Backport 7696897932a35708b1632517127c1a3a59919878

Changes: https://git.openjdk.org/jdk17u-dev/pull/562/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=562&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8276837
  Stats: 52 lines in 3 files changed: 21 ins; 5 del; 26 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/562.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev pull/562/head:pull/562

PR: https://git.openjdk.org/jdk17u-dev/pull/562