test/zlib/test_zlib.rb (test_path): enable the accidentally-disabled assertion

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63171 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/zlib/test_zlib.rb

@@ -621,9 +621,9 @@ if defined? Zlib
         gz.close
 
         sio = StringIO.new(s)
-        Zlib::GzipReader.new(sio) do |f|
-          assert_raise(NoMethodError) { f.path }
-        end
+        gz = Zlib::GzipReader.new(sio)
+        assert_raise(NoMethodError) { gz.path }
+        gz.close
       }
     end
   end