Issue #19795: Mark up None as literal text.
diff --git a/Doc/library/test.rst b/Doc/library/test.rst
index 2ea9c27..59577f0 100644
--- a/Doc/library/test.rst
+++ b/Doc/library/test.rst
@@ -398,7 +398,7 @@
A context manager that creates a temporary directory at *path* and
yields the directory.
- If *path* is None, the temporary directory is created using
+ If *path* is ``None``, the temporary directory is created using
:func:`tempfile.mkdtemp`. If *quiet* is ``False``, the context manager
raises an exception on error. Otherwise, if *path* is specified and
cannot be created, only a warning is issued.
@@ -421,7 +421,7 @@
The context manager creates a temporary directory in the current
directory with name *name* before temporarily changing the current
- working directory. If *name* is None, the temporary directory is
+ working directory. If *name* is ``None``, the temporary directory is
created using :func:`tempfile.mkdtemp`.
If *quiet* is ``False`` and it is not possible to create or change