[jdk17u-dev] RFR: 8339470: [17u] More defensive fix for 8163921

[Goetz Lindenmaier]

This does not remove the header specifications, it just fixes the error.

Well, it removes * as type, but that is illegal and should be meant to match the same as */*.

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Commit messages:
 - 8339470: [17u] More defensive fix for 8163921

Changes: https://git.openjdk.org/jdk17u-dev/pull/2843/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=2843&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8339470
  Stats: 10 lines in 2 files changed: 1 ins; 0 del; 9 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/2843.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/2843/head:pull/2843

PR: https://git.openjdk.org/jdk17u-dev/pull/2843