[glib] ghash: Suppress -Wmaybe-uninitialized from GCC 4.4

[Colin Walters <walters src gnome org>]

commit e359130e3ec840b72628253d0bde44144225fa1a
Author: Colin Walters <walters verbum org>
Date:   Tue Apr 2 14:10:15 2013 -0400

    ghash: Suppress -Wmaybe-uninitialized from GCC 4.4
    
    It's not clever enough to figure out that these are always initialized
    in code paths that use them.
    
    Reviewed-By: Benjamin Otte <otte gnome org>

 glib/ghash.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/glib/ghash.c b/glib/ghash.c
index eb828bd..9150f32 100644
--- a/glib/ghash.c
+++ b/glib/ghash.c
@@ -841,8 +841,8 @@ g_hash_table_insert_node (GHashTable *hash_table,
 {
   gboolean already_exists;
   guint old_hash;
-  gpointer key_to_free;
-  gpointer value_to_free;
+  gpointer key_to_free = NULL;
+  gpointer value_to_free = NULL;
 
   old_hash = hash_table->hashes[node_index];
   already_exists = HASH_IS_REAL (old_hash);