Demote warnings to notices where appropriate, following the goal that as few "red box" warnings
should clutter the docs as possible. Part 1: stuff that gets merged to Py3k.
diff --git a/Doc/library/subprocess.rst b/Doc/library/subprocess.rst
index 685e941..c95566b 100644
--- a/Doc/library/subprocess.rst
+++ b/Doc/library/subprocess.rst
@@ -301,10 +301,10 @@
.. warning::
- Use :meth:`communicate` rather than :meth:`.stdin.write`,
- :meth:`.stdout.read` or :meth:`.stderr.read` to avoid deadlocks due
- to any of the other OS pipe buffers filling up and blocking the child
- process.
+ Use :meth:`communicate` rather than :attr:`.stdin.write <stdin>`,
+ :attr:`.stdout.read <stdout>` or :attr:`.stderr.read <stderr>` to avoid
+ deadlocks due to any of the other OS pipe buffers filling up and blocking the
+ child process.
.. attribute:: Popen.stdin