Lfun:	extra_look - define an extra look for the player

Synopsis:
	string extra_look()

Description:
	Whenever a player looks at another player, each item in the other
	player's inventory gets this function called. If it returns a
	string, this string is given out after the character data, but before
	the inventory of the player.

	This can be used to implement curses that give some visual result.

Return value:
	If you want to display an extra look string, return it, else
	return 0.

Examples:
	extra_look() {
		return "The player has a sore throat"; /* shout curse */
	}

See also: helpdir/look, player/query_extra_look