Fix typo.

theano/scan_module/tests/test_scan_opt.py

@@ -213,7 +213,7 @@ class TestPushOutScanOutputDot(object):
         # not be the result of a Dot
         scan_node = [node for node in f_opt.maker.fgraph.toposort()
                      if isinstance(node.op, Scan)][0]
-        # NOTE: WHEN INFER_SHAPE IS REENABLED, BELLOW THE SCAN MUST
+        # NOTE: WHEN INFER_SHAPE IS REENABLED, BELOW THE SCAN MUST
         # HAVE ONLY 1 OUTPUT.
         assert len(scan_node.op.outputs) == 2
         assert not isinstance(scan_node.op.outputs[0], T.Dot)