Fix some markup glitches.

Doc/library/pdb.rst

@@ -347,7 +347,8 @@ by the local file.
 .. pdbcommand:: l(ist) [first[, last]]
 
    List source code for the current file.  Without arguments, list 11 lines
-   around the current line or continue the previous listing.  With one argument,
+   around the current line or continue the previous listing.  With ``.`` as
+   argument, list 11 lines around the current line.  With one argument,
    list 11 lines around at that line.  With two arguments, list the given range;
    if the second argument is less than the first, it is interpreted as a count.
 

Doc/library/urllib.request.rst

@@ -638,7 +638,8 @@ sorting the handler instances.
    :meth:`unknown_open`.
 
    Note that the implementation of these methods may involve calls of the parent
-   :class:`OpenerDirector` instance's :meth:`.open` and :meth:`.error` methods.
+   :class:`OpenerDirector` instance's :meth:`~OpenerDirector.open` and
+   :meth:`~OpenerDirector.error` methods.
 
 #. Every handler with a method named like :meth:`protocol_response` has that
    method called to post-process the response.

Doc/whatsnew/2.0.rst

@@ -656,7 +656,7 @@ break.
 The change which will probably break the most code is tightening up the
 arguments accepted by some methods.  Some methods would take multiple arguments
 and treat them as a tuple, particularly various list methods such as
-:meth:`.append` and :meth:`.insert`. In earlier versions of Python, if ``L`` is
+:meth:`append` and :meth:`insert`. In earlier versions of Python, if ``L`` is
 a list, ``L.append( 1,2 )`` appends the tuple ``(1,2)`` to the list.  In Python
 2.0 this causes a :exc:`TypeError` exception to be raised, with the message:
 'append requires exactly 1 argument; 2 given'.  The fix is to simply add an

Doc/whatsnew/2.5.rst

@@ -1765,7 +1765,7 @@ Full documentation for ElementTree is available at
 http://effbot.org/zone/element-index.htm.
 
 ElementTree represents an XML document as a tree of element nodes. The text
-content of the document is stored as the :attr:`.text` and :attr:`.tail`
+content of the document is stored as the :attr:`text` and :attr:`tail`
 attributes of  (This is one of the major differences between ElementTree and
 the Document Object Model; in the DOM there are many different types of node,
 including :class:`TextNode`.)