[baobab/wip/jtojnar/gtk4] build: switch to gtk4-update-icon-cache

[Jan Tojnar <jtojnar src gnome org>]

commit 660420054a2925535fe87892b748ffa57a4cfc4e
Author: Jan Tojnar <jtojnar gmail com>
Date:   Thu Feb 17 03:04:43 2022 +0000

    build: switch to gtk4-update-icon-cache
    
    The GTK 3 variant may not be available in build sandboxes.

 build-aux/post-install.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/build-aux/post-install.py b/build-aux/post-install.py
index 69d526a..9f0c3a5 100755
--- a/build-aux/post-install.py
+++ b/build-aux/post-install.py
@@ -13,7 +13,7 @@ if not destdir:
     subprocess.call(['glib-compile-schemas', str(datadir / 'glib-2.0' / 'schemas')])
 
     print('Updating icon cache...')
-    subprocess.call(['gtk-update-icon-cache', '-qtf', str(datadir / 'icons' / 'hicolor')])
+    subprocess.call(['gtk4-update-icon-cache', '-qtf', str(datadir / 'icons' / 'hicolor')])
 
     print('Updating desktop database...')
     subprocess.call(['update-desktop-database', '-q', str(datadir / 'applications')])