Need to change '%' to '$' in the 'stop program' command.

Otherwise the program doesn't actually stop even though monit makes it looks like
everything restarts fine.

Thanks to @macmartine, @yaauie, @cea2k.

Fixes resque#527, resque#497, resque#492

examples/monit/resque.monit

@@ -1,6 +1,6 @@
 check process resque_worker_QUEUE
   with pidfile /data/APP_NAME/current/tmp/pids/resque_worker_QUEUE.pid
   start program = "/usr/bin/env HOME=/home/user RACK_ENV=production PATH=/usr/local/bin:/usr/local/ruby/bin:/usr/bin:/bin:$PATH /bin/sh -l -c 'cd /data/APP_NAME/current; nohup bundle exec rake environment resque:work RAILS_ENV=production QUEUE=queue_name VERBOSE=1 PIDFILE=tmp/pids/resque_worker_QUEUE.pid >> log/resque_worker_QUEUE.log 2>&1'" as uid deploy and gid deploy
-  stop program = "/bin/sh -c 'cd /data/APP_NAME/current && kill -9 %(cat tmp/pids/resque_worker_QUEUE.pid) && rm -f tmp/pids/resque_worker_QUEUE.pid; exit 0;'"
+  stop program = "/bin/sh -c 'cd /data/APP_NAME/current && kill -9 $(cat tmp/pids/resque_worker_QUEUE.pid) && rm -f tmp/pids/resque_worker_QUEUE.pid; exit 0;'"
   if totalmem is greater than 300 MB for 10 cycles then restart  # eating up memory?
   group resque_workers