Added --help support to better/list.

better/list

@@ -39,10 +39,13 @@ runIn(){
 }
 
 showUsage(){
-	echo "Usage: list [trackers|sites] or list [<trackers|sites> domain]"
+	echo "\nUsage: list [trackers|sites] or list [<trackers|sites> domain]\n"
+	exit 0
 }
 
-if [ -n "$2" ]; then
+if [ "$1" = "--help" ]; then
+	showUsage
+elif [ -n "$2" ]; then
 	if [[ "$1" = "trackers" || "$1" = "sites" ]]; then
 		runIn inspector "coffee stats.coffee --$1 --start=$2 --count=20"
 	fi