nobu	2017-02-10 10:13:22 +0900 (Fri, 10 Feb 2017)

  New Revision: 57589

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=57589

  Log:
    parallel.rb: fix intervention
    
    * test/lib/test/unit/parallel.rb (_report): send a response and a
      newline atomically, to get rid of intervention with "p" which
      runs in a separate thread.

  Modified files:
    trunk/test/lib/test/unit/parallel.rb
Index: test/lib/test/unit/parallel.rb
===================================================================
--- test/lib/test/unit/parallel.rb	(revision 57588)
+++ test/lib/test/unit/parallel.rb	(revision 57589)
@@ -152,8 +152,7 @@ module Test https://github.com/ruby/ruby/blob/trunk/test/lib/test/unit/parallel.rb#L152
       end
 
       def _report(res, *args) # :nodoc:
-        res = "#{res} #{args.pack("m0")}" unless args.empty?
-        @stdout.puts(res)
+        @stdout.write(args.empty? ? "#{res}\n" : "#{res} #{args.pack("m0")}\n")
       end
 
       def puke(klass, meth, e) # :nodoc:

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