More raise statement normalization.
diff --git a/Lib/encodings/utf_32.py b/Lib/encodings/utf_32.py
index 4bbd22a..f0b7709 100644
--- a/Lib/encodings/utf_32.py
+++ b/Lib/encodings/utf_32.py
@@ -127,7 +127,7 @@
         elif byteorder == 1:
             self.decode = codecs.utf_32_be_decode
         elif consumed>=4:
-            raise UnicodeError,"UTF-32 stream does not start with BOM"
+            raise UnicodeError("UTF-32 stream does not start with BOM")
         return (object, consumed)
 
 ### encodings module API