The third and final doc-string sweep by Ka-Ping Yee.

The attached patches update the standard library so that all modules
have docstrings beginning with one-line summaries.

A new docstring was added to formatter.  The docstring for os.py
was updated to mention nt, os2, ce in addition to posix, dos, mac.
diff --git a/Lib/toaiff.py b/Lib/toaiff.py
index 1e73526..7fd0153 100644
--- a/Lib/toaiff.py
+++ b/Lib/toaiff.py
@@ -1,10 +1,12 @@
-# Convert "arbitrary" sound files to AIFF files (Apple and SGI's audio format).
-# Input may be compressed.
-# Uncompressed file type may be AIFF, WAV, VOC, 8SVX, NeXT/Sun, and others.
-# An exception is raised if the file is not of a recognized type.
-# Returned filename is either the input filename or a temporary filename;
-# in the latter case the caller must ensure that it is removed.
-# Other temporary files used are removed by the function.
+"""Convert "arbitrary" sound files to AIFF (Apple and SGI's audio format).
+
+Input may be compressed.
+Uncompressed file type may be AIFF, WAV, VOC, 8SVX, NeXT/Sun, and others.
+An exception is raised if the file is not of a recognized type.
+Returned filename is either the input filename or a temporary filename;
+in the latter case the caller must ensure that it is removed.
+Other temporary files used are removed by the function.
+"""
 
 import os
 import tempfile