convert shebang lines: python -> python3
diff --git a/Lib/smtplib.py b/Lib/smtplib.py
index a01a184..69ec9ec 100755
--- a/Lib/smtplib.py
+++ b/Lib/smtplib.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#! /usr/bin/env python3
 
 '''SMTP/ESMTP client class.