when not delaying. Seems a bit faster, but I've seen cases where there's a monster on screen but not in the list (maybe before this change too; not sure)
git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@3855 c06c8d41-db1a-0410-9941-cceddc491573
FACD4S74A4PYPEYDEIDP56BPE5NJGRK2RWVOKROXLMT7FJUPTYQAC
if (true /* xxx: expensive? */)
_print_stats_line4_monsters();
// XXX: better check? I think this skips the update at the very end
// of a delay
if (you.delay_queue.empty())
_print_stats_monster_pane();