fix bootstrapping on machines with only 2.x installed

diff --git a/Python/makeopcodetargets.py b/Python/makeopcodetargets.py
index 7180e9aa7701fcc8e0713b3e260d0ec0761db583..a85ac5215107ab0bde8326370a5ea2d13daaeca2 100755 (executable)
--- a/Python/makeopcodetargets.py
+++ b/Python/makeopcodetargets.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python3
+#! /usr/bin/env python
 """Generate C code for the jump table of the threaded code interpreter
 (for compilers supporting computed gotos or "labels-as-values", such as gcc).
 """