From f4b417eb43468630cf4591c1768bc0c3b1378bcd Mon Sep 17 00:00:00 2001
From: akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sat, 1 Nov 2014 13:29:18 +0000
Subject: refine message of assert_join_threads.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48226 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/ruby/envutil.rb | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/test/ruby/envutil.rb b/test/ruby/envutil.rb
index 55657a0762..d34b3e3c7b 100644
--- a/test/ruby/envutil.rb
+++ b/test/ruby/envutil.rb
@@ -533,10 +533,11 @@ eom
           end
         end
         if !errs.empty?
-          msg = errs.map {|t, err|
+          msg = "exceptions on #{errs.length} threads:\n" +
+            errs.map {|t, err|
+            "#{t.inspect}:\n" +
             err.backtrace.map.with_index {|line, i|
               if i == 0
-                "#{t.inspect}:\n" +
                 "#{line}: #{err.message} (#{err.class})"
               else
                 "\tfrom #{line}"
-- 
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