ShowDocSpec: add a random comment to the definition
ShowDocSpec: add a random comment to the definition

This commit fixes the failing test. Internally, Pry raises
`CommandError`, when cannot find a definition (this is the new
behaviour), so the test needs to be updated.

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