try

announcement.gemspec

@@ -88,7 +88,6 @@ if old_gemfile_text != new_gemfile_text
       }
   end
   all_command = "#{command1} && cd #{ENV['PWD']} && #{command2} #{command3} #{command4}&& kill -s TERM `cat tmp/pids/unicorn.pid`; bundle exec #{unicorn_rails} -c config/unicorn.rb -D -E #{mode}|at now"
-  puts all_command
   a = Thread.start do
     Bundler.with_clean_env do
         puts ENV['PWD']