[docs] [issue18743] References to non-existant "StringIO" module

Serhiy Storchaka added the comment: Ah, I missed it. Here is completed patch. ---------- Added file: http://bugs.python.org/file31321/doc_StringIO_refs_2.patch _______________________________________ Python tracker <report@bugs.python.org> <http://bugs.python.org/issue18743> _______________________________________