Merge pull request rust-lang#780 from GeeF/patch-1

Fix and clarify section on re-export

src/items/use-declarations.md

@@ -66,15 +66,18 @@ cannot be resolved unambiguously, they represent a compile-time error.
 An example of re-exporting:
 
 ```rust
-# fn main() { }
 mod quux {
-    pub use quux::foo::{bar, baz};
-
+    pub use self::foo::{bar, baz};
     pub mod foo {
-        pub fn bar() { }
-        pub fn baz() { }
+        pub fn bar() {}
+        pub fn baz() {}
     }
 }
+
+fn main() {
+    quux::bar();
+    quux::baz();
+}
 ```
 
 In this example, the module `quux` re-exports two public names defined in