Fix epydoc warnings

doc/library/config.txt

@@ -174,9 +174,9 @@ Config Attributes
 
     A list of optimizer tags that we don't want included in the default Mode.
     If multiple tags, separate them by ':'.
-    Ex: to remove the elemwise inplace optimizer(slow for big graph)
-        use the flags: optimizer_excluding:inplace_opt
-	inplace_opt is the name of that optimization.
+    Ex: to remove the elemwise inplace optimizer(slow for big graph),
+    use the flags: optimizer_excluding:inplace_opt, where
+    inplace_opt is the name of that optimization.
 
 .. attribute:: optimizer_including
 

theano/printing.py

@@ -23,7 +23,7 @@ def debugprint(obj, depth=-1, print_type=False, file=None):
     :type file: None, 'str', or file-like object
     :param file: print to this file ('str' means to return a string)
 
-    :returns: str if `file`=='str', else file arg
+    :returns: string if `file` == 'str', else file arg
 
     Each line printed represents a Variable in the graph.
     The indentation of each line corresponds to its depth in the symbolic graph.