C++: Fix typo

Author: jketema

cpp/ql/src/experimental/Likely Bugs/ArrayAccessProductFlow.ql

@@ -79,6 +79,6 @@ from
   ArraySizeFlow::PathNode1 source1, ArraySizeFlow::PathNode2 source2,
   ArraySizeFlow::PathNode1 sink1, ArraySizeFlow::PathNode2 sink2
 where ArraySizeFlow::hasFlowPath(source1, source2, sink1, sink2)
-// TODO: pull delta osut and display it
+// TODO: pull delta out and display it
 select sink1.getNode(), source1, sink1, "Off-by one error allocated at $@ bounded by $@.", source1,
   source1.toString(), sink2, sink2.toString()