[gtk: 1/4] build: Use python3 for the post install script

[Nirbheek Chauhan <nirbheekc src gnome org>]

commit 69251d051ae267e66f0f83e748ce7265230ee6db
Author: Jordan Petridis <jpetridis gnome org>
Date:   Mon Feb 25 07:09:35 2019 +0200

    build: Use python3 for the post install script
    
    While *some* systems alias python to python3 nowdays, this is
    not true for eveything. Especially systems that can potentially
    offer both python2 and python3.
    
    According to both PEP 394 and PEP 441 its recommended to always
    add the 3 in the shebang.

 build-aux/meson/post-install.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/build-aux/meson/post-install.py b/build-aux/meson/post-install.py
index f84b1971f5..b66961c02b 100644
--- a/build-aux/meson/post-install.py
+++ b/build-aux/meson/post-install.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import os
 import sys