From 9ba95190c4299ec69655406c048fd8795787adfa Mon Sep 17 00:00:00 2001
From: John Jones <jmjatlanta@gmail.com>
Date: Tue, 15 Jan 2019 12:19:00 -0500
Subject: [PATCH] make assert message more standard

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

diff --git a/src/io/json.cpp b/src/io/json.cpp
index 666af76..712973c 100644
--- a/src/io/json.cpp
+++ b/src/io/json.cpp
@@ -631,7 +631,7 @@ namespace fc
               to_stream(os, v.get_object(), format, max_depth - 1 );
               return;
          default:
-            FC_THROW_EXCEPTION( fc::invalid_arg_exception, "Unsupported variant type: " + std::to_string(v.get_type()) );
+            FC_THROW_EXCEPTION( fc::invalid_arg_exception, "Unsupported variant type: ${type}", ( "type", v.get_type() ) );
       }
    }