* Lib/linecache.py: don't crash on empty filename
	* Lib/macpath.py: don't return trailing colon for dirname()
	(XXX won't do for volume names -- but otherwise glob(':*:*.py')
	loops forever)
	* Lib/traceback.py: print SyntaxError correctly
	* Lib/stat.py: moved to posixstat.py; added macstat.py which has
	the constants for the Mac; and created new stat.py which includes
	the right one
	* Lib/urllib.py: fix caching bug (by disabling the cache)
diff --git a/Lib/stat.py b/Lib/stat.py
index 381e28a..5f6f522 100644
--- a/Lib/stat.py
+++ b/Lib/stat.py
@@ -8,7 +8,7 @@
 # XXX Strictly spoken, this module may have to be adapted for each POSIX
 # implementation; in practice, however, the numeric constants used by
 # stat() are almost universal (even for stat() emulations on non-UNIX
-# systems like Macintosh or MS-DOS).
+# systems like MS-DOS).
 
 # Indices for stat struct members in tuple returned by os.stat()