[gnome-software] trivial: Fix adding PackageKit sources

[Richard Hughes <rhughes src gnome org>]

commit d06822e373838e9ce677f84212541689cd74156b
Author: Richard Hughes <richard hughsie com>
Date:   Wed Jun 1 09:45:25 2016 +0100

    trivial: Fix adding PackageKit sources
    
    This is fall out from the GsAppList change.

 src/plugins/gs-plugin-packagekit.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/plugins/gs-plugin-packagekit.c b/src/plugins/gs-plugin-packagekit.c
index 57e4ffc..4becabc 100644
--- a/src/plugins/gs-plugin-packagekit.c
+++ b/src/plugins/gs-plugin-packagekit.c
@@ -112,7 +112,7 @@ gs_plugin_add_sources_related (GsPlugin *plugin,
        ProgressData data;
        const gchar *id;
        gboolean ret = TRUE;
-       g_autoptr(GsAppList) installed = NULL;
+       g_autoptr(GsAppList) installed = gs_app_list_new ();
        g_autoptr(PkResults) results = NULL;
        g_autoptr(AsProfileTask) ptask = NULL;