[gnome-software/wip/rancell/reviews] Launch software-properties-gtk in place of the sources dialog

[William Hua <williamhua src gnome org>]

commit 29bd65614e40facb314dbfd74ad7d21087625861
Author: William Hua <william hua canonical com>
Date:   Tue Mar 1 13:46:56 2016 -0500

    Launch software-properties-gtk in place of the sources dialog
    
    https://bugs.launchpad.net/ubuntu/+source/gnome-software/+bug/1551702

 src/gs-shell.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/src/gs-shell.c b/src/gs-shell.c
index 37bcb14..26189eb 100644
--- a/src/gs-shell.c
+++ b/src/gs-shell.c
@@ -756,6 +756,9 @@ gs_shell_show_sources (GsShell *shell)
        GsShellPrivate *priv = gs_shell_get_instance_private (shell);
        GtkWidget *dialog;
 
+       if (g_spawn_command_line_async ("software-properties-gtk", NULL))
+               return;
+
        dialog = gs_sources_dialog_new (priv->main_window, priv->plugin_loader);
        g_signal_connect_swapped (dialog, "response",
                                  G_CALLBACK (gtk_widget_destroy),