[gnome-software] Fix a tiny memleak

[Kalev Lember <klember src gnome org>]

commit ef0f76c56ef65abd7f5d31a874cba0a47c271dbc
Author: Kalev Lember <klember redhat com>
Date:   Tue Jan 12 10:31:09 2016 +0100

    Fix a tiny memleak
    
    Free the container returned by g_variant_get, as documented in
    https://developer.gnome.org/glib/stable/gvariant-format-strings.html#gvariant-format-strings-convenience

 src/gs-application.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/gs-application.c b/src/gs-application.c
index 2174864..6a9862f 100644
--- a/src/gs-application.c
+++ b/src/gs-application.c
@@ -549,9 +549,9 @@ install_resources_activated (GSimpleAction *action,
 #endif
        const gchar *mode;
        const gchar *startup_id;
-       gchar **resources;
+       g_autofree gchar **resources = NULL;
 
-       g_variant_get (parameter, "(&s^as&s)", &mode, &resources, &startup_id);
+       g_variant_get (parameter, "(&s^a&s&s)", &mode, &resources, &startup_id);
 
 #ifdef GDK_WINDOWING_X11
        display = gdk_display_get_default ();