[gtk+] Clean up some unfortunate formatting

[Matthias Clasen <matthiasc src gnome org>]

commit c0c1774b0158ebe299da8bc4a5aec4771ff1f6e5
Author: Matthias Clasen <mclasen redhat com>
Date:   Sun Mar 22 11:44:00 2015 -0400

    Clean up some unfortunate formatting
    
    "if (...) do" just looks wrong.

 gtk/gtkfilechooserbutton.c |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)
---
diff --git a/gtk/gtkfilechooserbutton.c b/gtk/gtkfilechooserbutton.c
index 810e542..b81e076 100644
--- a/gtk/gtkfilechooserbutton.c
+++ b/gtk/gtkfilechooserbutton.c
@@ -1033,11 +1033,12 @@ gtk_file_chooser_button_destroy (GtkWidget *widget)
       priv->dialog = NULL;
     }
 
-  if (priv->model && gtk_tree_model_get_iter_first (priv->model, &iter)) do
+  if (priv->model && gtk_tree_model_get_iter_first (priv->model, &iter))
     {
-      model_free_row_data (button, &iter);
+      do
+        model_free_row_data (button, &iter);
+      while (gtk_tree_model_iter_next (priv->model, &iter));
     }
-  while (gtk_tree_model_iter_next (priv->model, &iter));
 
   if (priv->dnd_select_folder_cancellable)
     {