[mutter] Add the group from cogl_get_option_group() to the GOptionContext

[Tomas Frydrych <tomasf src gnome org>]

commit bd90fd7033b9af6d25fbc4fcd64f3ec1a5843c56
Author: Neil Roberts <neil linux intel com>
Date:   Mon Feb 8 17:41:53 2010 +0000

    Add the group from cogl_get_option_group() to the GOptionContext
    
    Otherwise it's not possible to use the COGL_DEBUG environment variable.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=609350

 src/core/main.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/core/main.c b/src/core/main.c
index e92f567..0672a0f 100644
--- a/src/core/main.c
+++ b/src/core/main.c
@@ -341,6 +341,7 @@ meta_parse_options (int *argc, char ***argv,
   ctx = g_option_context_new (NULL);
   g_option_context_add_main_entries (ctx, options, "mutter");
   g_option_context_add_group (ctx, clutter_get_option_group_without_init ());
+  g_option_context_add_group (ctx, cogl_get_option_group ());
 
   if (!g_option_context_parse (ctx, argc, argv, &error))
     {