_find_git_root walked cwd's parents with Path.exists(); on hosts where a parent is mode 700 for another user that raised PermissionError out of prompt construction. Treat an unreadable ancestor as 'no .git here'.
_find_git_root walked cwd's parents with Path.exists(); on hosts where a parent is mode 700 for another user that raised PermissionError out of prompt construction. Treat an unreadable ancestor as 'no .git here'.