Tweak retain/release checker diagnostics to specify a leak occurs because an object is not referenced later in the path,
not that it isn't referenced later in the code.  Fixes <rdar://problem/8527839>.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116636 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Checker/CFRefCount.cpp b/lib/Checker/CFRefCount.cpp
index 35451a1..8d1f4ba 100644
--- a/lib/Checker/CFRefCount.cpp
+++ b/lib/Checker/CFRefCount.cpp
@@ -2420,8 +2420,8 @@
           "collector";
   }
   else
-    os << " is no longer referenced after this point and has a retain count of"
-          " +" << RV->getCount() << " (object leaked)";
+    os << " is not referenced later in this execution path and has a retain "
+          "count of +" << RV->getCount() << " (object leaked)";
 
   return new PathDiagnosticEventPiece(L, os.str());
 }