Use of -p option of mkdir command to avoid message telling tmp/pids directory...

Use of -p option of mkdir command to avoid message telling tmp/pids directory already exists at every GitLab (re)start. It ensures that all directories on the path exists so it can create tmp directory if its not there for some reason.

resque.sh

-mkdir tmp/pids
+mkdir -p tmp/pids
 nohup bundle exec rake environment resque:work QUEUE=* RAILS_ENV=production PIDFILE=tmp/pids/resque_worker.pid & >> log/resque_worker.log 2>&1