[nautilus] file-operations: empty_trash: use automatic cleanup

[Ernestas Kulik <ernestask src gnome org>]

commit f673ae8ab26b7320c9887403ccf21bf79a5ac8a6
Author: Ernestas Kulik <ernestask gnome org>
Date:   Mon May 15 11:22:45 2017 +0300

    file-operations: empty_trash: use automatic cleanup
    
    https://bugzilla.gnome.org/show_bug.cgi?id=782650

 src/nautilus-file-operations.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)
---
diff --git a/src/nautilus-file-operations.c b/src/nautilus-file-operations.c
index 8d9e0c4..baee856 100644
--- a/src/nautilus-file-operations.c
+++ b/src/nautilus-file-operations.c
@@ -7938,7 +7938,7 @@ empty_trash_thread_func (GTask        *task,
 void
 nautilus_file_operations_empty_trash (GtkWidget *parent_view)
 {
-    GTask *task;
+    g_autoptr (GTask) task = NULL;
     EmptyTrashJob *job;
     GtkWindow *parent_window;
 
@@ -7958,7 +7958,6 @@ nautilus_file_operations_empty_trash (GtkWidget *parent_view)
     task = g_task_new (NULL, NULL, empty_trash_task_done, job);
     g_task_set_task_data (task, job, NULL);
     g_task_run_in_thread (task, empty_trash_thread_func);
-    g_object_unref (task);
 }
 
 static void