General cleanup, raise normalization in Lib/distutils.
diff --git a/Lib/distutils/version.py b/Lib/distutils/version.py
index 96b6552..f71b2f6 100644
--- a/Lib/distutils/version.py
+++ b/Lib/distutils/version.py
@@ -140,7 +140,7 @@
     def parse (self, vstring):
         match = self.version_re.match(vstring)
         if not match:
-            raise ValueError, "invalid version number '%s'" % vstring
+            raise ValueError("invalid version number '%s'" % vstring)
 
         (major, minor, patch, prerelease, prerelease_num) = \
             match.group(1, 2, 4, 5, 6)