those setters no more accept undef

1 files changed, 2 insertions, 2 deletions

diff --git a/rpmdrake b/rpmdrake
index 9cb6f3c8..9b4477f3 100755
--- a/rpmdrake
+++ b/rpmdrake
@@ -252,7 +252,7 @@ sub run_treeview_dialog {
     $tree = Gtk3::TreeView->new_with_model($tree_model);
     $tree->get_selection->set_mode('browse');
 
-    $tree->append_column(Gtk3::TreeViewColumn->new_with_attributes(undef, Gtk3::MDV::CellRendererPixWithLabel->new, 'pixbuf' => $grp_columns{icon}, label => $grp_columns{label}));
+    $tree->append_column(Gtk3::TreeViewColumn->new_with_attributes('', Gtk3::MDV::CellRendererPixWithLabel->new, 'pixbuf' => $grp_columns{icon}, label => $grp_columns{label}));
     $tree->set_headers_visible(0);
 
     $detail_list_model = Gtk3::ListStore->new("Glib::String",
@@ -268,7 +268,7 @@ sub run_treeview_dialog {
     $detail_list = Gtk3::TreeView->new_with_model($detail_list_model);
     $detail_list->append_column(
         my $col_sel = Gtk3::TreeViewColumn->new_with_attributes(
-            undef,
+            '',
             Gtk3::CellRendererToggle->new,
             active => $pkg_columns{selected},
             activatable => $pkg_columns{selectable}