[balsa/gtk4: 200/312] filter-edit-dialog: Build with gtk4

[Peter Bloomfield <peterb src gnome org>]

commit d67af6316060ed1e046c982f7fe3148b83e6cdd2
Author: Peter Bloomfield <PeterBloomfield bellsouth net>
Date:   Thu Oct 8 22:49:44 2020 -0400

    filter-edit-dialog: Build with gtk4

 src/filter-edit-dialog.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/filter-edit-dialog.c b/src/filter-edit-dialog.c
index eadd02117..98f78e747 100644
--- a/src/filter-edit-dialog.c
+++ b/src/filter-edit-dialog.c
@@ -197,7 +197,7 @@ build_left_side(void)
     vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 4);
 
     /* the list */
-    sw = gtk_scrolled_window_new(NULL, NULL);
+    sw = gtk_scrolled_window_new();
     gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(sw),
                                   GTK_POLICY_AUTOMATIC,
                                   GTK_POLICY_AUTOMATIC);