--- a/roundup/cgi/client.py	Tue Mar 19 21:58:49 2019 -0400
+++ b/roundup/cgi/client.py	Tue Mar 19 22:01:13 2019 -0400
@@ -237,6 +237,10 @@
        needed for handling json and xml data blobs under python
        3. Under python 2, str and binary are interchangable, not so
        under 3.
+
+       Note that there may be places where this should support text mode.
+       (e.g. a large text file upload??). None are known, but this could be
+       a problem.
     '''
     def make_file(self, mode=None):
         ''' work around https://bugs.python.org/issue27777 '''