fix typos

debian/rules

@@ -64,8 +64,8 @@ install: build
 	do
 		for i in a b c d e f g h i j k l m n o p q r s t u v w x y z _ 0 1 2 3 4 5 6 7 8 9
 		do
-			mkdir -p $DATA/$sub/$i
-			chown www-data $DATA/$sub/$i
+			mkdir -p debian/alternc/var/alternc/${sub}/${i}
+			chown www-data debian/alternc/var/alternc/${sub}/${i}
 		done
 	done