Fix silly typo

Doc/whatsnew/whatsnew23.tex

@@ -1414,7 +1414,7 @@ package and importing it as \module{bsddb3}, you will have to change your
 compression library.  bz2-compressed data is usually smaller than 
 corresponding \module{zlib}-compressed data. (Contributed by Gustavo Niemeyer.)
  
-\item A set of standard date/type types has been added in the new \module{datetime}
+\item A set of standard date/time types has been added in the new \module{datetime}
 module.  See the following section for more details.
 
 \item The Distutils \class{Extension} class now supports