Look up systemctl from $PATH for user session checks by K900 · Pull Request #13157 · microsoft/WSL

This is already done in other instances where init calls systemctl, and we rely on init to find systemctl in PATH on NixOS, as we don't (really) have a /usr.

Summary of the Pull Request

PR Checklist

  • Closes: Link to issue #xxx
  • Communication: I've discussed this with core contributors already. If work hasn't been agreed, this work might be rejected
  • Tests: Added/updated if needed and all pass
  • Localization: All end user facing strings can be localized
  • Dev docs: Added/updated if needed
  • Documentation updated: If checked, please file a pull request on our docs repo and link it here: #xxx

Detailed Description of the Pull Request / Additional comments

Validation Steps Performed