[gtk+] placeview: Don't leak the file enumerator

[Matthias Clasen <matthiasc src gnome org>]

commit 214eb5860db6fb95bb806a46350cb7dbca93c81f
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Nov 17 13:50:25 2016 -0500

    placeview: Don't leak the file enumerator
    
    Pointed out in https://bugzilla.gnome.org/show_bug.cgi?id=774634

 gtk/gtkplacesview.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkplacesview.c b/gtk/gtkplacesview.c
index 17ed7bd..ceee750 100644
--- a/gtk/gtkplacesview.c
+++ b/gtk/gtkplacesview.c
@@ -1010,6 +1010,7 @@ network_enumeration_finished (GObject      *source_object,
                                           priv->networks_fetching_cancellable,
                                           network_enumeration_next_files_finished,
                                           user_data);
+      g_object_unref (enumerator);
     }
 }