Update runtime files.
diff --git a/runtime/doc/usr_41.txt b/runtime/doc/usr_41.txt
index 736adf2..fa3c389 100644
--- a/runtime/doc/usr_41.txt
+++ b/runtime/doc/usr_41.txt
@@ -623,6 +623,7 @@
 	map()			change each List item
 	sort()			sort a List
 	reverse()		reverse the order of a List
+	uniq()			remove copies of repeated adjacent items
 	split()			split a String into a List
 	join()			join List items into a String
 	range()			return a List with a sequence of numbers