Maintain the struct order when initializing

Otherwise it'll break every GLIB_PRIVATE_CALL user.

glib/glib-private.c

@@ -33,8 +33,6 @@ GLibPrivateVTable *
 glib__private__ (void)
 {
   static GLibPrivateVTable table = {
-    glib_init,
-
     g_wakeup_new,
     g_wakeup_free,
     g_wakeup_get_pollfd,
@@ -47,7 +45,9 @@ glib__private__ (void)
     g_main_context_new_with_next_id,
 
     g_dir_open_with_errno,
-    g_dir_new_from_dirp
+    g_dir_new_from_dirp,
+
+    glib_init,
   };
 
   return &table;