[jdk21u-dev] RFR: 8372710: Update ProcessBuilder/Basic regex

[Goetz Lindenmaier]

I backport this as follow-up of JDK-8352533.

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Commit messages:
 - Backport b3e063c2c34ac12ae2a566617560ecc52253262d

Changes: https://git.openjdk.org/jdk21u-dev/pull/2622/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=2622&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8372710
  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/2622.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/2622/head:pull/2622

PR: https://git.openjdk.org/jdk21u-dev/pull/2622