Re: [PATCH v3 1/2] config: refactor include_by_gitdir() into include_by_path()

> From: Chen Linxuan <me@black-desk.cn>
> 
> The include_by_gitdir() function matches the realpath of a given
> path against a glob pattern, but its interface is tightly coupled to
> the gitdir condition: it takes a struct config_options *opts and
> extracts opts->git_dir internally.
> 
> Refactor it into a more generic include_by_path() helper that takes
> a const char *path parameter directly, and update the gitdir and
> gitdir/i callers to pass opts->git_dir explicitly.  No behavior
> change, just preparing for the addition of a new worktree condition
> that will reuse the same path-matching logic with a different path.