Last round of adapting style of documenting argument default values.
diff --git a/Doc/library/weakref.rst b/Doc/library/weakref.rst
index 7c7be95..9aaa58a 100644
--- a/Doc/library/weakref.rst
+++ b/Doc/library/weakref.rst
@@ -1,4 +1,3 @@
-
:mod:`weakref` --- Weak references
==================================
@@ -92,10 +91,10 @@
but cannot be propagated; they are handled in exactly the same way as exceptions
raised from an object's :meth:`__del__` method.
- Weak references are :term:`hashable` if the *object* is hashable. They will maintain
- their hash value even after the *object* was deleted. If :func:`hash` is called
- the first time only after the *object* was deleted, the call will raise
- :exc:`TypeError`.
+ Weak references are :term:`hashable` if the *object* is hashable. They will
+ maintain their hash value even after the *object* was deleted. If
+ :func:`hash` is called the first time only after the *object* was deleted,
+ the call will raise :exc:`TypeError`.
Weak references support tests for equality, but not ordering. If the referents
are still alive, two references have the same equality relationship as their