[gnome-flashback] screensaver: fix memory leak

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 8e0b328c02e3941bcda97868ed72b4a651b55463
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Thu Apr 23 15:29:57 2020 +0300

    screensaver: fix memory leak

 gnome-flashback/libscreensaver/gf-user-image.c | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/gnome-flashback/libscreensaver/gf-user-image.c b/gnome-flashback/libscreensaver/gf-user-image.c
index d598650..d66dbcf 100644
--- a/gnome-flashback/libscreensaver/gf-user-image.c
+++ b/gnome-flashback/libscreensaver/gf-user-image.c
@@ -203,6 +203,8 @@ find_user_by_name_cb (GObject      *object,
                                           self->cancellable,
                                           user_ready_cb,
                                           self);
+
+  g_free (user);
 }
 
 static void