ConsoleInteraction.py: Add docstring
ConsoleInteraction.py: Add docstring

Adds the document string to method `print_affected_lines` to make it
more understandable.

Closes https://github.com/coala/coala/issues/2801

arush0311/coala,Nosferatul/coala,MariosPanag/coala,ayushin78/coala,NiklasMM/coala,Nosferatul/coala,sagark123/coala,refeed/coala,SanketDG/coala,Balaji2198/coala,netman92/coala,arush0311/coala,netman92/coala,JohnS-01/coala,meetmangukiya/coala,coala-analyzer/coala,ayushin78/coala,Asalle/coala,coala/coala,impmihai/coala,arjunsinghy96/coala,impmihai/coala,arjunsinghy96/coala,RJ722/coala,kartikeys98/coala,JohnS-01/coala,kartikeys98/coala,Asalle/coala,MariosPanag/coala,Balaji2198/coala,arush0311/coala,nemaniarjun/coala,refeed/coala,incorrectusername/coala,aptrishu/coala,damngamerz/coala,MariosPanag/coala,meetmangukiya/coala,shreyans800755/coala,Shade5/coala,NiklasMM/coala,nemaniarjun/coala,CruiseDevice/coala,karansingh1559/coala,impmihai/coala,coala/coala,JohnS-01/coala,Nosferatul/coala,rimacone/testing2,sils1297/coala,Asnelchristian/coala,shreyans800755/coala,yashLadha/coala,coala/coala,yashtrivedi96/coala,karansingh1559/coala,yashLadha/coala,ayushin78/coala,sils1297/coala,sagark123/coala,Asalle/coala,Shade5/coala,nemaniarjun/coala,netman92/coala,damngamerz/coala,SanketDG/coala,meetmangukiya/coala,karansingh1559/coala,damngamerz/coala,jayvdb/coala,Balaji2198/coala,aptrishu/coala,SanketDG/coala,yashtrivedi96/coala,CruiseDevice/coala,coala-analyzer/coala,Asnelchristian/coala,Shade5/coala,refeed/coala,incorrectusername/coala,coala-analyzer/coala,rimacone/testing2,CruiseDevice/coala,jayvdb/coala,Asnelchristian/coala,sagark123/coala,jayvdb/coala,sils1297/coala,RJ722/coala,rimacone/testing2,arjunsinghy96/coala,incorrectusername/coala,NiklasMM/coala,RJ722/coala,kartikeys98/coala,yashLadha/coala,shreyans800755/coala,yashtrivedi96/coala,aptrishu/coala