diff --git a/c/src/ada-tests/tmtests/tmoverhd/README b/c/src/ada-tests/tmtests/tmoverhd/README
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+#
+#  $Id$
+#
+
+This test is of marginal usefulness in testing the bindings.  It
+shows how much overhead is required to call the Ada binding
+routine but does not give any indication of how much overhead the
+binding itself adds.  This information can be inferred by subtracting
+the C times from Ada times on the same target processor.