Reveal hidden traps inside sanctuary when it's first invoked if the traps are in LOS.
git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@6358 c06c8d41-db1a-0410-9941-cceddc491573
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if (scare_count == 1 && seen_mon != NULL)
simple_monster_message(seen_mon, " turns to flee the light!");
else if (scare_count > 0)
mpr("The monsters scatter in all directions!");
if (trap_count > 0)
mpr("The flash of divine light reveals hidden traps!",
MSGCH_GOD);