convert shebang lines: python -> python3
diff --git a/Lib/test/test_multibytecodec.py b/Lib/test/test_multibytecodec.py
index e4e86ff..ce860d7 100644
--- a/Lib/test/test_multibytecodec.py
+++ b/Lib/test/test_multibytecodec.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 # test_multibytecodec.py
 #   Unit test for multibytecodec itself