[evince/gnome-3-30] previewer: Fix default icon name

[Germán Poo-Caamaño <gpoo src gnome org>]

commit b066dd36cafc5ed7173c3708bf8231ec2f3ce526
Author: Germán Poo-Caamaño <gpoo gnome org>
Date:   Thu Nov 8 11:34:45 2018 -0300

    previewer: Fix default icon name

 previewer/ev-previewer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/previewer/ev-previewer.c b/previewer/ev-previewer.c
index 146762e0..343bc5de 100644
--- a/previewer/ev-previewer.c
+++ b/previewer/ev-previewer.c
@@ -208,7 +208,7 @@ main (gint argc, gchar **argv)
        ev_stock_icons_init ();
 
        g_set_application_name (_("GNOME Document Previewer"));
-       gtk_window_set_default_icon_name ("evince");
+       gtk_window_set_default_icon_name ("org.gnome.Evince");
 
         application = gtk_application_new (NULL,
                                            G_APPLICATION_NON_UNIQUE |