Last round of adapting style of documenting argument default values.
diff --git a/Doc/library/winreg.rst b/Doc/library/winreg.rst
index ad46bc3..9932c60 100644
--- a/Doc/library/winreg.rst
+++ b/Doc/library/winreg.rst
@@ -183,7 +183,7 @@
:const:`HKEY_LOCAL_MACHINE` tree. This may or may not be true.
-.. function:: OpenKey(key, sub_key[, res=0][, sam=KEY_READ])
+.. function:: OpenKey(key, sub_key, res=0, sam=KEY_READ)
Opens the specified key, returning a :dfn:`handle object`
@@ -195,7 +195,7 @@
*res* is a reserved integer, and must be zero. The default is zero.
*sam* is an integer that specifies an access mask that describes the desired
- security access for the key. Default is :const:`KEY_READ`
+ security access for the key. Default is :const:`KEY_READ`.
The result is a new handle to the specified key.