Fix SF bug #526518
The doc string for cStringIO suggested that str() of a StringIO object
was equivalent to getvalue(). This was never true, so repair the doc
string. (doctest would have helped here.)
Bug fix candidate for any past versions.
diff --git a/Modules/cStringIO.c b/Modules/cStringIO.c
index f85d60a..8c9dab9 100644
--- a/Modules/cStringIO.c
+++ b/Modules/cStringIO.c
@@ -67,7 +67,7 @@
" an_output_stream=StringIO()\n"
" an_output_stream.write(some_stuff)\n"
" ...\n"
-" value=an_output_stream.getvalue() # str(an_output_stream) works too!\n"
+" value=an_output_stream.getvalue()\n"
"\n"
" an_input_stream=StringIO(a_string)\n"
" spam=an_input_stream.readline()\n"