Fixed typo in the change log entry for r81066.

git-svn-id: svn://svn.chromium.org/blink/trunk@81067 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/LayoutTests/ChangeLog

 2011-03-14  Ryosuke Niwa  <rniwa@webkit.org>
 
-        GTK rebaselines or r81053.
+        GTK rebaselines for r81053.
 
         * platform/gtk/editing/selection/drag-select-1-expected.txt:
         * platform/gtk/editing/selection/fake-drag-expected.txt: