Merge pull request #3850 from dmitriy-serdyuk/dunction-dump-doc

theano/compile/function.py

@@ -52,7 +52,7 @@ def function_dump(filename, inputs, outputs=None, mode=None, updates=None,
     Note:
     The parameter extra_tag_to_remove, is passed to the StripPickler used.
     To pickle graph made by Blocks, it must be:
-    ['annotations', 'replacement_of', 'aggregation_scheme', 'rolesc']
+    ['annotations', 'replacement_of', 'aggregation_scheme', 'roles']
 
     """
     assert isinstance(filename, string_types)