Update status of SE-0138.

Author: amartini51

proposals/0138-unsaferawbufferpointer.md

@@ -2,8 +2,9 @@
 
 * Proposal: [SE-0138](0138-unsaferawbufferpointer.md)
 * Author: [Andrew Trick](https://github.com/atrick)
-* Status: **Active Review (August 31...September 14)**
 * Review manager: [Dave Abrahams](https://github.com/dabrahams)
+* Status: **Accepted with revisions**
+* Decision Notes: [Rationale](https://lists.swift.org/pipermail/swift-evolution/Week-of-Mon-20160919/027167.html)
 
 Contents:
 - [Introduction](#introduction)