Merge pull request rust-lang#1 from golddranks/master

Reworded the rule about accessing public items.

Author: steveklabnik

src/visibility-and-privacy.md

@@ -39,8 +39,9 @@ pub enum State {
 With the notion of an item being either public or private, Rust allows item
 accesses in two cases:
 
-1. If an item is public, then it can be used externally through any of its
-   public ancestors.
+1. If an item is public, then it can be accessed externally from some module
+   `m` if you can access all the item's parent modules from `m`. You can
+   also potentially be able to name the item through re-exports. See below.
 2. If an item is private, it may be accessed by the current module and its
    descendants.