From 8d1468eab456a21bbd7a8e8a6a9b87f27fa69062 Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby-lang.org>
Date: Sun, 19 Mar 2017 08:03:39 +0900
Subject: Remove cname duplication from exc_inspect().

---
 src/error.c         | 5 +----
 test/t/exception.rb | 2 +-
 2 files changed, 2 insertions(+), 5 deletions(-)

diff --git a/src/error.c b/src/error.c
index 5efa438ff..93e90fc69 100644
--- a/src/error.c
+++ b/src/error.c
@@ -166,13 +166,10 @@ exc_inspect(mrb_state *mrb, mrb_value exc)
   else {
     const char *cname = mrb_obj_classname(mrb, exc);
     str = mrb_str_new_cstr(mrb, cname);
-    mrb_str_cat_lit(mrb, str, ": ");
     if (append_mesg) {
+      mrb_str_cat_lit(mrb, str, ": ");
       mrb_str_cat_str(mrb, str, mesg);
     }
-    else {
-      mrb_str_cat_cstr(mrb, str, cname);
-    }
   }
   return str;
 }
diff --git a/test/t/exception.rb b/test/t/exception.rb
index 2dc8f5487..9c8b36e44 100644
--- a/test/t/exception.rb
+++ b/test/t/exception.rb
@@ -353,7 +353,7 @@ assert('Exception 19') do
 end
 
 assert('Exception#inspect without message') do
-  assert_equal "Exception: Exception", Exception.new.inspect
+  assert_equal "Exception", Exception.new.inspect
 end
 
 assert('Exception#backtrace') do
-- 
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