Fixed command arity warnings on ruby 1.8
Fixed command arity warnings on ruby 1.8

jasonm23/pry,shockone/pry,ooohiroyukiooo/pry,85x14/pry,jasnow/pry,tdg5/pry,gfvcastro/pry,nju520/pry,geoffreylitt/pry,shockone/pry,sferik/pry,bronzdoc/pry,nju520/pry,raeno/pry,sferik/pry,scalixte-mdsol/pry,raeno/pry,caporta/pry,nju520/pry,geoffreylitt/pry,gfvcastro/pry,ooohiroyukiooo/pry,ooohiroyukiooo/pry,pvdb/pry,shockone/pry,85x14/pry,jasnow/pry,caporta/pry,raeno/pry,tdg5/pry,jasonm23/pry,ngpestelos/pry,icebreaker/pry,85x14/pry,jasnow/pry,jasonm23/pry,icebreaker/pry,deivid-rodriguez/pry,scalixte-mdsol/pry,richo/pry,pvdb/pry,scalixte-mdsol/pry,printercu/pry,ngpestelos/pry,tdg5/pry,josue804/debunker,caporta/pry,josue804/debunker,sideci-sample/sideci-sample-pry,bronzdoc/pry,printercu/pry