convert shebang lines: python -> python3
diff --git a/Lib/test/test_multiprocessing.py b/Lib/test/test_multiprocessing.py
index 7fcbdc32..452e192 100644
--- a/Lib/test/test_multiprocessing.py
+++ b/Lib/test/test_multiprocessing.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 #
 # Unit tests for the multiprocessing package