fix Pry.view_clip().
fix Pry.view_clip().

before:
[3] pry(main)> Pry.view_clip(_pry_)
=> "#<Pry>"

after:
[19] pry(main)> Pry.view_clip(_pry_)
=> "#<Pry:7f97e16d7bc8>"

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