open() / TextIOWrapper doc: make it explicit than newline='\n' doesn't
translate newlines on output.
diff --git a/Modules/_io/_iomodule.c b/Modules/_io/_iomodule.c
index 4c90433..5987679 100644
--- a/Modules/_io/_iomodule.c
+++ b/Modules/_io/_iomodule.c
@@ -264,9 +264,9 @@
"\n"
"* On output, if newline is None, any '\\n' characters written are\n"
" translated to the system default line separator, os.linesep. If\n"
-" newline is '', no translation takes place. If newline is any of the\n"
-" other legal values, any '\\n' characters written are translated to\n"
-" the given string.\n"
+" newline is '' or '\n', no translation takes place. If newline is any\n"
+" of the other legal values, any '\\n' characters written are translated\n"
+" to the given string.\n"
"\n"
"If closefd is False, the underlying file descriptor will be kept open\n"
"when the file is closed. This does not work when a file name is given\n"