Rakefile in urbanopt-reopt-0.6.0 vs Rakefile in urbanopt-reopt-0.6.1

@@ -59,12 +59,12 @@
   cli = OpenStudio.getOpenStudioCLI
   the_call = "#{cli} --verbose --bundle '#{runner.gemfile_path}' --bundle_path '#{runner.bundle_install_path}' ./spec/cli_openssl_test.rb"
 
   puts 'SYSTEM CALL:'
   puts the_call
-  STDOUT.flush
+  $stdout.flush
   result = runner.run_command(the_call)
   puts "DONE, result = #{result}"
-  STDOUT.flush
+  $stdout.flush
 end
 
 task default: :spec