typo in recent commit

theano/tensor/opt.py

@@ -195,7 +195,7 @@ register_canonicalize(local_dimshuffle_lift)
 register_specialize(local_dimshuffle_lift)
 
 @register_canonicalize
-@local_optimizer([])
+@gof.local_optimizer([])
 def local_dimshuffle_no_inplace_at_canonicalize(node):
     if isinstance(node.op, T.DimShuffle) and node.op.inplace:
         return [T.DimShuffle(node.op.input_broadcastable, node.op.new_order, inplace=False)(node.inputs[0])]