[docs] [issue33896] Document what components make up the filecmp.cmp os.stat signature.

Change by Cheryl Sabella <cheryl.sabella@gmail.com>: ---------- assignee: -> docs@python components: +Documentation -Library (Lib) nosy: +docs@python versions: -Python 3.6 _______________________________________ Python tracker <report@bugs.python.org> <https://bugs.python.org/issue33896> _______________________________________