Fix a few remaining problems found by rstlint.

Doc/extending/newtypes.rst

@@ -1216,7 +1216,7 @@ Here is an example::
 
        PyErr_Format(PyExc_AttributeError,
                     "'%.50s' object has no attribute '%.400s'",
-		    tp->tp_name, name);
+                    tp->tp_name, name);
        return NULL;
    }
 

Doc/howto/regex.rst

@@ -611,7 +611,7 @@ of each one.
    is to read? ::
 
       charref = re.compile(r"""
-       &[#]		     # Start of a numeric entity reference
+       &[#]                # Start of a numeric entity reference
        (
            0[0-7]+         # Octal form
          | [0-9]+          # Decimal form

Doc/library/urllib.request.rst

@@ -49,8 +49,8 @@ The :mod:`urllib.request` module defines the following functions:
    The urlopen function from the previous version, Python 2.6 and earlier,  of
    the module  urllib has been discontinued as urlopen can return the
    file-object as the previous. The proxy handling, which in earlier was passed
-   as a dict parameter to urlopen can be availed by the use of `ProxyHandler`
+   as a dict parameter to urlopen can be availed by the use of
-   objects.
+   :class:`ProxyHandler` objects.
 
 
 .. function:: install_opener(opener)

Doc/library/xmlrpc.client.rst

@@ -513,8 +513,8 @@ transport.  The following example shows how:
            self.proxy = proxy
        def make_connection(self, host):
            self.realhost = host
-   	h = http.client.HTTP(self.proxy)
+           h = http.client.HTTP(self.proxy)
-   	return h
+           return h
        def send_request(self, connection, handler, request_body):
            connection.putrequest("POST", 'http://%s%s' % (self.realhost, handler))
        def send_host(self, connection, host):

Doc/reference/simple_stmts.rst

@@ -871,8 +871,8 @@ The :keyword:`nonlocal` statement
    nonlocal_stmt: "nonlocal" `identifier` ("," `identifier`)*
 
 .. XXX add when implemented
-                : ["=" (`target_list` "=")+ `expression_list`]
+                : ["=" (`target_list` "=")+ expression_list]
-                : | "nonlocal" `identifier` `augop` `expression_list`
+                : | "nonlocal" identifier augop expression_list
 
 The :keyword:`nonlocal` statement causes the listed identifiers to refer to
 previously bound variables in the nearest enclosing scope.  This is important