[grilo] config: Provided imlementation for grl_config_has_param.

[Iago Toral Quiroga <itoral src gnome org>]

commit e7416782fbe9955148b4e51c791266b62b2b5fe7
Author: Iago Toral Quiroga <itoral igalia com>
Date:   Wed Jan 19 08:34:10 2011 +0100

    config: Provided imlementation for grl_config_has_param.

 src/data/grl-config.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/src/data/grl-config.c b/src/data/grl-config.c
index 72a1335..8e1cd48 100644
--- a/src/data/grl-config.c
+++ b/src/data/grl-config.c
@@ -413,5 +413,6 @@ grl_config_get_password(GrlConfig *config)
 gboolean
 grl_config_has_param (GrlConfig *config, const gchar *param)
 {
-
+  g_return_val_if_fail (GRL_IS_CONFIG (config), FALSE);
+  return g_key_file_has_key (config->priv->config, GROUP_NAME, param, NULL);
 }