[gnome-build-meta] gnome-shell.bst: try harder to disable bash completion

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 4ab07bb09688ffb44e3deab2daa4bcbaa9f0a7dc
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Mon Mar 23 15:43:09 2020 -0500

    gnome-shell.bst: try harder to disable bash completion

 elements/core/gnome-shell.bst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/elements/core/gnome-shell.bst b/elements/core/gnome-shell.bst
index d00d7b92..af10bdc6 100644
--- a/elements/core/gnome-shell.bst
+++ b/elements/core/gnome-shell.bst
@@ -45,4 +45,4 @@ depends:
 
 variables:
   meson-local: >-
-    -Dbash_completion=disabled
+    -Dextensions-tool:bash_completion=disabled