update comment

ce72ca04 · Frederic Bastien · dcbc95aa · ce72ca04
--- a/theano/gof/graph.py
+++ b/theano/gof/graph.py
@@ -794,7 +794,7 @@ def io_toposort(inputs, outputs, orderings=None):
    """WRITEME
    inputs: a list or tuple of Variable instances
-    outputs: a list or tuple of Variable instances
+    outputs: a list or tuple of Apply instances
    orderings: a dictionary
                key: Apply instance