Update docs w.r.t. PEP 3100 changes -- patch for GHOP by Dan Finnie.
diff --git a/Doc/library/os.rst b/Doc/library/os.rst
index 294da5e..6dc4a63 100644
--- a/Doc/library/os.rst
+++ b/Doc/library/os.rst
@@ -701,13 +701,13 @@
 
 .. function:: getcwd()
 
-   Return a string representing the current working directory. Availability:
-   Macintosh, Unix, Windows.
+   Return a bytestring representing the current working directory.
+   Availability: Macintosh, Unix, Windows.
 
 
 .. function:: getcwdu()
 
-   Return a Unicode object representing the current working directory.
+   Return a string representing the current working directory.
    Availability: Macintosh, Unix, Windows.