fixed comment

src/sh/theme.sh

@@ -84,7 +84,8 @@ if [ ! "${THEME_LOADED:-}" ]; then
   # <<title>>         string  Title of album
   # <<artist>>        string  Artist of album
   # <<year>>          string  Year of initial release
-  # TODO: The above <<secondary>> is of a joint item-string type; unify or document.
+  # Note: The above <<secondary>> is of a joint item-string type. See code for
+  # details.
   RGV_FMT="${RGV_FMT:-"<<flag>>\t<<type>>\t<<hassecondary>>\t<<title>><<artist>> <<year>> <<secondary>>"}"
   RGV_FMT_CNT=$(($(printf "$RGV_FMT" | tr -cd '\t' | wc -c) + 1))
   RGV_FMT_RIGHTALIGN="${RGV_FMT_RIGHTALIGN:-"1"}"