pub const REPO_LOCAL_GIT_VARS: &[&str];Expand description
Git’s own list of repository-local environment variables, as reported by
git rev-parse --local-env-vars (15 entries on git 2.55).
Kept as a constant rather than shelled out per call so building a command
stays free of process spawns; local_env_vars_match_git asserts it still
agrees with the installed git, so a version that adds one fails loudly
instead of silently reopening the hole.