From 75a76c3663a9eb23d3d708e4fce9bb002967f3bc Mon Sep 17 00:00:00 2001
From: Giovanni Bussi <giovanni.bussi@gmail.com>
Date: Wed, 21 Nov 2018 09:25:52 +0100
Subject: [PATCH] missing space in error message

---
 src/core/PlumedMain.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/PlumedMain.cpp b/src/core/PlumedMain.cpp
index e8739d5a0..75342dcc8 100644
--- a/src/core/PlumedMain.cpp
+++ b/src/core/PlumedMain.cpp
@@ -118,7 +118,7 @@ static void testThrow(const char* what) {
     throw std::ios_base::failure(what);
   }
 
-  plumed_error() << "unknown exception" << what;
+  plumed_error() << "unknown exception " << what;
 }
 
 PlumedMain::PlumedMain():
-- 
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