Raise statement normalization in Lib/test/.
diff --git a/Lib/test/test_cgi.py b/Lib/test/test_cgi.py
index 439982b..b1102cf 100644
--- a/Lib/test/test_cgi.py
+++ b/Lib/test/test_cgi.py
@@ -47,7 +47,7 @@
         env['CONTENT_TYPE'] = 'application/x-www-form-urlencoded'
         env['CONTENT_LENGTH'] = str(len(buf))
     else:
-        raise ValueError, "unknown method: %s" % method
+        raise ValueError("unknown method: %s" % method)
     try:
         return cgi.parse(fp, env, strict_parsing=1)
     except Exception as err: