[jdk17u-dev] RFR: 8285987: executing shell scripts without #! fails on Alpine linux

[Goetz Lindenmaier]

I backport this for parity with 17.0.8-oracle.

There might be some test failures which is known.  Fixed by follow up.

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Commit messages:
 - Backport 9d2f591e6a15dc155a8cc3b18a54456d5f9a3aa7

Changes: https://git.openjdk.org/jdk17u-dev/pull/1313/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=1313&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8285987
  Stats: 35 lines in 3 files changed: 17 ins; 0 del; 18 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/1313.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/1313/head:pull/1313

PR: https://git.openjdk.org/jdk17u-dev/pull/1313