avoid String#starts_with?
avoid String#starts_with?

* it's provided by activesupport, with a small change we can just use
  plain ruby

lzheng571/whenever,ctokoro/whenever,Nguyenanh/whenever,Dearest/whenever,HonoreDB/whenever,rafaelsales/whenever,shtzr840329/whenever,erikdahlstrand/whenever,thehungrycoder/whenever,bernabas/whenever,mindvalley/whenever,makandra/whenever,attilahorvath/whenever,bangwu/whenever,stpn/whenever,sideci-sample/sideci-sample-whenever,betesh/whenever,medictrust/whenever,javan/whenever