Fix Jenkins publish script: only run clear_caches.rb with a TTY if there is one
Fix Jenkins publish script: only run clear_caches.rb with a TTY if there is one

phusion/passenger_apt_automation,phusion/passenger_apt_automation,LoveMondays/passenger_apt_automation,phusion/passenger_apt_automation,shaneog/passenger_apt_automation,phusion/passenger_apt_automation,shaneog/passenger_apt_automation,LoveMondays/passenger_apt_automation,shaneog/passenger_apt_automation,phusion/passenger_apt_automation,shaneog/passenger_apt_automation,phusion/passenger_apt_automation,LoveMondays/passenger_apt_automation,shaneog/passenger_apt_automation,LoveMondays/passenger_apt_automation,LoveMondays/passenger_apt_automation,LoveMondays/passenger_apt_automation,LoveMondays/passenger_apt_automation,shaneog/passenger_apt_automation,shaneog/passenger_apt_automation,LoveMondays/passenger_apt_automation,shaneog/passenger_apt_automation,phusion/passenger_apt_automation,shaneog/passenger_apt_automation,LoveMondays/passenger_apt_automation