[balsa/wip/gtk4] mblist: Make the MRU menu usable

[Peter Bloomfield <peterb src gnome org>]

commit 25fe697e76bea63d45ecdbcce8f24c2141dd2474
Author: Peter Bloomfield <PeterBloomfield bellsouth net>
Date:   Sun Jun 2 11:59:45 2019 -0400

    mblist: Make the MRU menu usable

 src/balsa-mblist.c | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/src/balsa-mblist.c b/src/balsa-mblist.c
index d520a99c6..0bd3c44f3 100644
--- a/src/balsa-mblist.c
+++ b/src/balsa-mblist.c
@@ -1816,6 +1816,7 @@ bmbl_mru_show_tree(GtkWidget * widget, gpointer data)
 #if HAVE_MACOSX_DESKTOP
     libbalsa_macosx_menu_for_parent(dialog, mru->window);
 #endif
+    gtk_widget_set_hexpand(scroll, TRUE);
     gtk_widget_set_vexpand(scroll, TRUE);
     gtk_container_add(GTK_CONTAINER(gtk_dialog_get_content_area(GTK_DIALOG(dialog))), scroll);