More versionadded/versionchanged fixes

Doc/library/http.client.rst

@@ -384,7 +384,7 @@ HTTPConnection Objects
    Set the debugging level (the amount of debugging output printed). The default
    debug level is ``0``, meaning no debugging output is printed.
 
-   .. versionadded:: 2.7
+   .. versionadded:: 3.1
 
 .. method:: HTTPConnection.set_tunnel(host, port=None)
 

Doc/library/select.rst

@@ -100,7 +100,7 @@ The module defines the following:
    of up to :const:`PIPE_BUF` bytes.
    This value is guaranteed by POSIX to be at least 512.  Availability: Unix.
 
-   .. versionadded:: 2.7
+   .. versionadded:: 3.2
 
 
 .. _epoll-objects:

Doc/library/site.rst

@@ -120,7 +120,7 @@ empty, and the path manipulations are skipped; however the import of
    Returns a list containing all global site-packages directories
    (and possibly site-python).
 
-   .. versionadded:: 2.7
+   .. versionadded:: 3.2
 
 .. function:: getuserbase()
 
@@ -130,7 +130,7 @@ empty, and the path manipulations are skipped; however the import of
    variable ``USER_BASE`` is not initialized yet, this function will also set
    it.
 
-   .. versionadded:: 2.7
+   .. versionadded:: 3.2
 
 .. function:: getusersitepackages()
 
@@ -139,7 +139,7 @@ empty, and the path manipulations are skipped; however the import of
    If the global variable ``USER_SITE`` is not initialized yet, this
    function will also set it.
 
-   .. versionadded:: 2.7
+   .. versionadded:: 3.2
 
 .. XXX Update documentation
 .. XXX document python -m site --user-base --user-site