Correct closures PR link

Author: shepmaster

active/0044-closures.md

@@ -1,5 +1,5 @@
 - Start Date: 2014-07-29
-- RFC PR: [rust-lang/rfcs#44](https://github.com/rust-lang/rfcs/pull/44)
+- RFC PR: [rust-lang/rfcs#114](https://github.com/rust-lang/rfcs/pull/114)
 - Rust Issue: [rust-lang/rust#16095](https://github.com/rust-lang/rust/issues/16095)
 
 # Summary