Thrift license applied to all the C++ files

Reviewed By: bash

Notes: marc says $*, corson says "$@"


git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@665030 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/lib/cpp/src/concurrency/Mutex.cpp b/lib/cpp/src/concurrency/Mutex.cpp
index 1f116a3..3d74d75 100644
--- a/lib/cpp/src/concurrency/Mutex.cpp
+++ b/lib/cpp/src/concurrency/Mutex.cpp
@@ -1,3 +1,9 @@
+// Copyright (c) 2006- Facebook
+// Distributed under the Thrift Software License
+//
+// See accompanying file LICENSE or visit the Thrift site at:
+// http://developers.facebook.com/thrift/
+
 #include "Mutex.h"
 
 #include <assert.h>