Fixed error in #417, use "type" instead of "span".
Fixed error in #417, use "type" instead of "span".

urbit/urbit,cgyarvin/arvo,jfranklin9000/urbit,ohAitch/arvo,ngzax/urbit,jfranklin9000/urbit,jfranklin9000/urbit,urbit/urbit,urbit/urbit,belisarius222/arvo,urbit/urbit,urbit/urbit,urbit/urbit,urbit/urbit,ngzax/urbit,ngzax/urbit,jfranklin9000/urbit,jfranklin9000/urbit,ngzax/urbit,ohAitch/arvo,jfranklin9000/urbit,ngzax/urbit,joemfb/arvo,ngzax/urbit,belisarius222/arvo,joemfb/arvo,ngzax/urbit,cgyarvin/arvo,jfranklin9000/urbit