[gnome-shell] endSessionDialog: Fix a signal-name typo

[Florian Müllner <fmuellner src gnome org>]

commit aae3789142834cfde0d032bdf3b7f0b00657beba
Author: Jonas Dreßler <verdre v0yd nl>
Date:   Thu Dec 5 13:06:35 2019 +0100

    endSessionDialog: Fix a signal-name typo
    
    https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/935

 js/ui/endSessionDialog.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/js/ui/endSessionDialog.js b/js/ui/endSessionDialog.js
index 7c8961d3b1..d9f78de777 100644
--- a/js/ui/endSessionDialog.js
+++ b/js/ui/endSessionDialog.js
@@ -260,7 +260,7 @@ class EndSessionDialog extends ModalDialog.ModalDialog {
         this.connect('opened',
                      this._onOpened.bind(this));
 
-        this._userLoadedId = this._user.connect('notify::is_loaded', this._sync.bind(this));
+        this._userLoadedId = this._user.connect('notify::is-loaded', this._sync.bind(this));
         this._userChangedId = this._user.connect('changed', this._sync.bind(this));
 
         let mainContentLayout = new St.BoxLayout({