[chrome-gnome-shell] Force i18n helper scripts to run with python3

[Yuri Konotopov <ykonotopov src gnome org>]

commit b023070522328eed861542a65c05b14210a142ca
Author: Yuri Konotopov <ykonotopov gmail com>
Date:   Tue Jun 7 19:46:43 2016 +0300

    Force i18n helper scripts to run with python3

 contrib/chrome-messages2po.py |    2 +-
 contrib/po2chrome-messages.py |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/contrib/chrome-messages2po.py b/contrib/chrome-messages2po.py
index 68f6eb3..8390fca 100755
--- a/contrib/chrome-messages2po.py
+++ b/contrib/chrome-messages2po.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 '''
     GNOME Shell integration for Chrome
diff --git a/contrib/po2chrome-messages.py b/contrib/po2chrome-messages.py
index d8e961c..eb34ef3 100755
--- a/contrib/po2chrome-messages.py
+++ b/contrib/po2chrome-messages.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 '''
     GNOME Shell integration for Chrome