factor: trim more using lists.

[factor.git] / extra / rosetta-code / gray-code / gray-code.factor

diff --git a/extra/rosetta-code/gray-code/gray-code.factor b/extra/rosetta-code/gray-code/gray-code.factor
index 9ad642c75dfb5e1ae1d44021c9258df0c44bcb8b..3e60ea089b211a40e62728440e43a33b880db575 100644 (file)
--- a/extra/rosetta-code/gray-code/gray-code.factor
+++ b/extra/rosetta-code/gray-code/gray-code.factor
@@ -1,7 +1,6 @@
 ! Copyright (c) 2012 Anonymous
 ! See http://factorcode.org/license.txt for BSD license.
-USING: arrays kernel locals math math.parser ranges
-prettyprint sequences ;
+USING: arrays kernel math math.parser prettyprint ranges sequences ;
 IN: rosetta-code.gray-code
 
 ! http://rosettacode.org/wiki/Gray_code