extensionPrefs: Add missing return value

When commit a7ec7583aaa17 merged two functions into one, it left
out the expected return value from one branch.

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/635

diff --git a/js/extensionPrefs/main.js b/js/extensionPrefs/main.js
index e5961e2e027fdfc0d11854ae7e60b81a35fd0322..afac49a80531a8f3d6ef82cf98564f636c723650 100644 (file)
--- a/js/extensionPrefs/main.js
+++ b/js/extensionPrefs/main.js
@@ -78,6 +78,8 @@ var Application = GObject.registerClass({
         dialog.set_default_size(600, 400);
         dialog.add(widget);
         dialog.show();
+
+        return true;
     }
 
     _buildErrorUI(row, exc) {