[gnome-settings-daemon] power: simplify brightness changed signal generation

[Giovanni Campagna <gcampagna src gnome org>]

commit 1a763e619b10d4e89c12498933cd26fe53e34a52
Author: Giovanni Campagna <gcampagna src gnome org>
Date:   Sat May 3 19:22:01 2014 +0200

    power: simplify brightness changed signal generation
    
    We can use g_variant_new_parsed() for building the inner variant
    and for passing the interface string too (and we save one malloc)
    
    https://bugzilla.gnome.org/show_bug.cgi?id=729500

 plugins/power/gsd-power-manager.c |    8 ++------
 1 files changed, 2 insertions(+), 6 deletions(-)
---
diff --git a/plugins/power/gsd-power-manager.c b/plugins/power/gsd-power-manager.c
index ce34599..54e3782 100644
--- a/plugins/power/gsd-power-manager.c
+++ b/plugins/power/gsd-power-manager.c
@@ -1261,17 +1261,13 @@ backlight_iface_emit_changed (GsdPowerManager *manager,
                               gint32           value)
 {
         GVariant *params;
-        gchar *string;
 
         /* not yet connected to the bus */
         if (manager->priv->connection == NULL)
                 return;
 
-        string = g_strdup_printf ("('%s', [{'Brightness', %%v}], @as [])", interface_name);
-        params = g_variant_new_parsed (string,
-                                       g_variant_new_int32 (value));
-        g_free (string);
-
+        params = g_variant_new_parsed ("(%s, [{'Brightness', <%i>}], @as [])", interface_name,
+                                       value);
         g_dbus_connection_emit_signal (manager->priv->connection,
                                        NULL,
                                        GSD_POWER_DBUS_PATH,