7127  remove -Wno-missing-braces from Makefile.uts

@@ -164,11 +164,11 @@
 typedef struct _g_set_elt *g_set_elt;
 typedef struct {
     k5_mutex_t mutex;
     void *data;
 } g_set;
-#define G_SET_INIT { K5_MUTEX_PARTIAL_INITIALIZER, 0 }
+#define G_SET_INIT { K5_MUTEX_PARTIAL_INITIALIZER, NULL }
 
 int g_set_init (g_set_elt *s);
 int g_set_destroy (g_set_elt *s);
 int g_set_entry_add (g_set_elt *s, void *key, void *value);
 int g_set_entry_delete (g_set_elt *s, void *key);