SF patch 1631942 by Collin Winter:
(a) "except E, V" -> "except E as V"
(b) V is now limited to a simple name (local variable)
(c) V is now deleted at the end of the except block
diff --git a/Tools/scripts/untabify.py b/Tools/scripts/untabify.py
index 9bdf235..e4a2cc0 100755
--- a/Tools/scripts/untabify.py
+++ b/Tools/scripts/untabify.py
@@ -12,7 +12,7 @@
         opts, args = getopt.getopt(sys.argv[1:], "t:")
         if not args:
             raise getopt.error, "At least one file argument required"
-    except getopt.error, msg:
+    except getopt.error as msg:
         print msg
         print "usage:", sys.argv[0], "[-t tabwidth] file ..."
         return
@@ -28,7 +28,7 @@
         f = open(filename)
         text = f.read()
         f.close()
-    except IOError, msg:
+    except IOError as msg:
         print "%r: I/O error: %s" % (filename, msg)
         return
     newtext = text.expandtabs(tabsize)