lib/pry/commands/ls.rb: refuse from a witty trick
lib/pry/commands/ls.rb: refuse from a witty trick

This is for the sake of 1.8.7 compatibility.

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