check that the length of checksum-lines is correct for md
check that the length of checksum-lines is correct for md

slavapestov/factor,slavapestov/factor,nicolas-p/factor,nicolas-p/factor,sarvex/factor-lang,mrjbq7/factor,sarvex/factor-lang,sarvex/factor-lang,AlexIljin/factor,factor/factor,tgunr/factor,bjourne/factor,bpollack/factor,AlexIljin/factor,mrjbq7/factor,bjourne/factor,factor/factor,AlexIljin/factor,dch/factor,bpollack/factor,bjourne/factor,sarvex/factor-lang,slavapestov/factor,bpollack/factor,tgunr/factor,tgunr/factor,mrjbq7/factor,bpollack/factor,sarvex/factor-lang,dch/factor,mrjbq7/factor,bpollack/factor,slavapestov/factor,dch/factor,AlexIljin/factor,tgunr/factor,bjourne/factor,bpollack/factor,factor/factor,dch/factor,factor/factor,bjourne/factor,factor/factor,dch/factor,bpollack/factor,AlexIljin/factor,nicolas-p/factor,slavapestov/factor,nicolas-p/factor,dch/factor,nicolas-p/factor,tgunr/factor,AlexIljin/factor,nicolas-p/factor,tgunr/factor,slavapestov/factor,sarvex/factor-lang,mrjbq7/factor,nicolas-p/factor,slavapestov/factor,factor/factor,bjourne/factor,sarvex/factor-lang,AlexIljin/factor,bjourne/factor,mrjbq7/factor