convert shebang lines: python -> python3
diff --git a/Lib/test/test_gzip.py b/Lib/test/test_gzip.py
index 429ada0..7eade6f 100644
--- a/Lib/test/test_gzip.py
+++ b/Lib/test/test_gzip.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#! /usr/bin/env python3
 """Test script for the gzip module.
 """