[gnome-photos] update-mime-job: Use g_auto*

[Debarshi Ray <debarshir src gnome org>]

commit 101dc8ce85f834b817a87b3bae6b983c744af3f7
Author: Umang Jain <mailumangjain gmail com>
Date:   Sun Dec 3 13:30:21 2017 +0530

    update-mime-job: Use g_auto*
    
    https://bugzilla.gnome.org/show_bug.cgi?id=788174

 src/photos-update-mtime-job.c |    7 +++----
 1 files changed, 3 insertions(+), 4 deletions(-)
---
diff --git a/src/photos-update-mtime-job.c b/src/photos-update-mtime-job.c
index 799e5d3..6ea4575 100644
--- a/src/photos-update-mtime-job.c
+++ b/src/photos-update-mtime-job.c
@@ -167,8 +167,8 @@ photos_update_mtime_job_run (PhotosUpdateMtimeJob *self,
                              gpointer user_data)
 {
   GApplication *app;
-  GTask *task;
-  PhotosQuery *query = NULL;
+  g_autoptr (GTask) task = NULL;
+  g_autoptr (PhotosQuery) query = NULL;
   PhotosSearchContextState *state;
 
   task = g_task_new (self, cancellable, callback, user_data);
@@ -192,6 +192,5 @@ photos_update_mtime_job_run (PhotosUpdateMtimeJob *self,
                                g_object_unref);
 
  out:
-  g_clear_object (&query);
-  g_object_unref (task);
+  return;
 }