pub fn find_pr_argv(slug: &str, branch: &str) -> Vec<String>Expand description
Argv for gh pr list --repo <slug> --head <branch> --state all --json number --limit 1. Extracted so the test suite can pin the gh
contract without shelling out; find_pr_for_branch is the caller
that actually invokes it. --state all is the load-bearing bit: a
closed or merged PR for the branch is still detected (its PrState
is resolved later via fetch_pr).