nobu	2017-12-18 13:23:16 +0900 (Mon, 18 Dec 2017)

  New Revision: 61316

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=61316

  Log:
    envutil.rb: define flush method
    
    * test/lib/envutil.rb (verbose_warning): flush is called on STDOUT
      and STDERR sometimes.
    
    From: Nobuyoshi Nakada <nobu@r...>

  Modified files:
    trunk/test/lib/envutil.rb
Index: test/lib/envutil.rb
===================================================================
--- test/lib/envutil.rb	(revision 61315)
+++ test/lib/envutil.rb	(revision 61316)
@@ -174,6 +174,7 @@ module EnvUtil https://github.com/ruby/ruby/blob/trunk/test/lib/envutil.rb#L174
   def verbose_warning
     class << (stderr = "".dup)
       alias write concat
+      def flush; end
     end
     stderr, $stderr = $stderr, stderr
     $VERBOSE = true

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