down_stairs().
git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@2107 c06c8d41-db1a-0410-9941-cceddc491573
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climb_message(stair_find, true);
climb_message(stair_find, true, old_level_type);
exit_stair_message(stair_find, true);
if (old_where != you.where_are_you && you.level_type == LEVEL_DUNGEON)
mprf("Welcome back to %s!",
branches[you.where_are_you].longname);