Default to py3 in sign-versions

diff --git a/devscripts/gh-pages/sign-versions.py b/devscripts/gh-pages/sign-versions.py
index 00cecce0cc27d7c2ab841c70e26771ee447ce360..8a824df56fe7677868ca9b03aa24de8d4b6eba76 100755 (executable)
--- a/devscripts/gh-pages/sign-versions.py
+++ b/devscripts/gh-pages/sign-versions.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import rsa
 import json