THRIFT-3120 Minor spelling errors and an outdated URL
Client: C++
Patch: Calvin Sun <675313675@qq.com>

This closes #471
diff --git a/lib/cpp/src/thrift/concurrency/Thread.h b/lib/cpp/src/thrift/concurrency/Thread.h
index 1d9153f..f5eb3a8 100644
--- a/lib/cpp/src/thrift/concurrency/Thread.h
+++ b/lib/cpp/src/thrift/concurrency/Thread.h
@@ -55,7 +55,7 @@
 
   /**
    * Gets the thread object that is hosting this runnable object  - can return
-   * an empty boost::shared pointer if no references remain on thet thread  object
+   * an empty boost::shared pointer if no references remain on that thread object
    */
   virtual boost::shared_ptr<Thread> thread() { return thread_.lock(); }