From fc579fdc83b751a44a18d2373e86ab38806e7306 Mon Sep 17 00:00:00 2001
From: Emilio Jesus Gallego Arias
Date: Fri, 19 Aug 2016 02:35:47 +0200
Subject: Make the user_err header an optional parameter.

Suggested by @ppedrot
---
 engine/evd.ml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'engine/evd.ml')

diff --git a/engine/evd.ml b/engine/evd.ml
index 7ee342ea0b..15654b4c6f 100644
--- a/engine/evd.ml
+++ b/engine/evd.ml
@@ -383,7 +383,7 @@ let add_name_newly_undefined naming evk evi (evtoid, idtoev as names) =
   | Misctypes.IntroAnonymous -> None
   | Misctypes.IntroIdentifier id ->
     if Idmap.mem id idtoev then
-    user_err "" (str "Already an existential evar of name " ++ pr_id id);
+    user_err  (str "Already an existential evar of name " ++ pr_id id);
     Some id
   | Misctypes.IntroFresh id ->
     let id = Namegen.next_ident_away_from id (fun id -> Idmap.mem id idtoev) in
-- 
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