nobu	2017-11-21 14:01:28 +0900 (Tue, 21 Nov 2017)

  New Revision: 60872

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=60872

  Log:
    fix test_erb.rb [GH-1763]
    
    * test/erb/test_erb.rb (test_run): require stringio.  suppress an
      unused variable warning.
    
    From: MSP-Greg <MSP-Greg@u...>

  Modified files:
    trunk/test/erb/test_erb.rb
Index: test/erb/test_erb.rb
===================================================================
--- test/erb/test_erb.rb	(revision 60871)
+++ test/erb/test_erb.rb	(revision 60872)
@@ -2,6 +2,7 @@ https://github.com/ruby/ruby/blob/trunk/test/erb/test_erb.rb#L2
 # frozen_string_literal: false
 require 'test/unit'
 require 'erb'
+require 'stringio'
 
 class TestERB < Test::Unit::TestCase
   class MyError < RuntimeError ; end
@@ -235,6 +236,7 @@ EOS https://github.com/ruby/ruby/blob/trunk/test/erb/test_erb.rb#L236
     $stdout = orig
     out.rewind
     assert_equal('9', out.read)
+    return unless num               # to remove warning
   end
 
   class Foo; end

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