Merge pull request rust-lang#368 from vegard/patch-1

Constant Items: fix grammar, ran -> run

Author: Havvy

src/items/constant-items.md

@@ -39,7 +39,7 @@ const BITS_N_STRINGS: BitsNStrings<'static> = BitsNStrings {
 
 ## Constants with Destructors
 
-Constants can contain destructors. Destructors are ran when the value goes out
+Constants can contain destructors. Destructors are run when the value goes out
 of scope.
 
 ```rust