RFR: JDK-8310265: (process) jspawnhelper should not use argv[0] [v2]

[Thomas Stuefe]

> Reported by [jarabekit at gmail.com](mailto:jarabekit at gmail.com) [1] 
> 
> jspawnhelper uses argv[0] to receive the fd string from the parent. That breaks with conventions and trips over certain tools like binfmt_misc. 
> 
> For details, see linked ML discussion. 
> 
> [1] https://mail.openjdk.org/pipermail/core-libs-dev/2023-June/107738.html

Thomas Stuefe has updated the pull request incrementally with one additional commit since the last revision:

  correct comment

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/14531/files
  - new: https://git.openjdk.org/jdk/pull/14531/files/2ec4f3b6..1ee05c05

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=14531&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=14531&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/14531.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/14531/head:pull/14531

PR: https://git.openjdk.org/jdk/pull/14531