Index: os.rst
===================================================================
--- os.rst	(revision 70643)
+++ os.rst	(working copy)
@@ -1016,7 +1016,7 @@
 
    Recursive directory creation function.  Like :func:`mkdir`, but makes all
    intermediate-level directories needed to contain the leaf directory.  Throws an
-   :exc:`error` exception if the leaf directory already exists or cannot be
+   :exc:`error` exception if the leaf directory cannot be
    created.  The default *mode* is ``0777`` (octal).  On some systems, *mode* is
    ignored. Where it is used, the current umask value is first masked out.