[gtk/wip/baedert/for-master] label: Shorten set_markup_internal a bit

[Timm Bäder <baedert src gnome org>]

commit e2bfc26ea5cf88227268c1c806f37268f65c75b4
Author: Timm Bäder <mail baedert org>
Date:   Fri Apr 10 16:35:15 2020 +0200

    label: Shorten set_markup_internal a bit

 gtk/gtklabel.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
---
diff --git a/gtk/gtklabel.c b/gtk/gtklabel.c
index b86194b784..9ab4f7c6e6 100644
--- a/gtk/gtklabel.c
+++ b/gtk/gtklabel.c
@@ -2406,8 +2406,7 @@ gtk_label_set_markup_internal (GtkLabel    *label,
 
   if (attrs)
     {
-      if (priv->markup_attrs)
-       pango_attr_list_unref (priv->markup_attrs);
+      g_clear_pointer (&priv->markup_attrs, pango_attr_list_unref);
       priv->markup_attrs = attrs;
     }