the recent-files code lacks translation in various places.

gtk_recent_chooser_default_add_filter:
    name = "Untitled filter";

gtk_recent_manager_real_changed:
          filename_warning ("Attempting to store changes into `%s', "
			    "but failed: %s",
			    priv->filename,
			    write_error->message);

          filename_warning ("Unable to stat() the recently used resources file "
			    "at `%s': %s.",
			    priv->filename,
			    g_strerror (errno));
[fixing the latter probably will make it necessary to save errno]

gtk_recent_manager_poll_timeout:
      filename_warning ("Unable to stat() the recently used resources file "
			"at `%s': %s.",
			priv->filename,
			g_strerror (errno));

build_recent_items_list:
          filename_warning ("Attempting to read the recently used resources file "
			    "at `%s', but an error occurred: %s. Aborting.",
			    priv->filename,
			    g_strerror (errno));

      filename_warning ("Attempting to read the recently used resources file "
			"at `%s', but the parser failed: %s.",
			priv->filename,
			read_error->message);


get_uri_shortname_for_display:
      name = g_strdup_printf ("%s: %s", method, local_file);
[rtl languages might want something else here.  some language might require
a space before the colon]

gtk_recent_chooser_menu_create_item:
      if (count <= 10)
        label = g_strdup_printf ("_%d. %s", count, escaped);
      else
        label = g_strdup_printf ("%d. %s", count, escaped);
[As above.  Also s/10/9/.]