Add missing newline to ChangeLog.

TBR=ager@chromium.org
Review URL: http://codereview.chromium.org/270002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3026 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

ChangeLog

@@ -40,6 +40,7 @@
 
         [ES5] Changed Object.keys to return strings for element indices.
 
+
 2009-09-23: Version 1.3.13
 
         Fixed uninitialized memory problem.