From 0fc0e963067ddd7fcf3b7580bca2c04623d021df Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?V=C3=ADtor=20Santos=20Costa?= <vsc@dcc.fc.up.pt>
Date: Sat, 5 Mar 2016 12:30:13 +0000
Subject: [PATCH] error should not be needed,

---
 library/maplist.yap | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/library/maplist.yap b/library/maplist.yap
index 87a384826..5f5150d5e 100644
--- a/library/maplist.yap
+++ b/library/maplist.yap
@@ -932,7 +932,7 @@ goal_expansion(partition(Meta, ListIn, List1, List2, List3), Mod:Goal) :-
 			  Outs2 = NOuts2,
 			  Outs3 = [In|NOuts3]
 			 ;
-			  error:must_be(oneof([<,=,>]), Diff)
+			  must_be(oneof([<,=,>]), Diff)
 			 ),
 			 RecursiveCall)
 		    ], Mod).