Better error printing
Better error printing

bpollack/factor,bpollack/factor,factor/factor,mrjbq7/factor,cataska/factor,mcandre/factor,factor/factor,bjourne/factor,mcandre/factor,littledan/Factor,erg/factor,slavapestov/factor,sarvex/factor-lang,ceninan/factor,mcandre/factor,nicolas-p/factor,nicolas-p/factor,jwmerrill/factor,seckar/factor,nicolas-p/factor,mcandre/factor,bjourne/factor,tgunr/factor,nicolas-p/factor,ceninan/factor,mrjbq7/factor,slavapestov/factor,erg/factor,tgunr/factor,erg/factor,factor/factor,slavapestov/factor,dch/factor,dch/factor,mrjbq7/factor,erg/factor,Keyholder/factor,cataska/factor,AlexIljin/factor,ceninan/factor,bjourne/factor,jwmerrill/factor,ehird/factor,AlexIljin/factor,littledan/Factor,dch/factor,sarvex/factor-lang,dharmatech/factor,AlexIljin/factor,bpollack/factor,bjourne/factor,mrjbq7/factor,slavapestov/factor,kingcons/factor,ehird/factor,kingcons/factor,factor/factor,AlexIljin/factor,dharmatech/factor,nicolas-p/factor,sarvex/factor-lang,kingcons/factor,mcandre/factor,AlexIljin/factor,tgunr/factor,sarvex/factor-lang,mrjbq7/factor,Keyholder/factor,bpollack/factor,seckar/factor,dch/factor,littledan/Factor,slavapestov/factor,bjourne/factor,mcandre/factor,slavapestov/factor,tgunr/factor,erg/factor,dharmatech/factor,sarvex/factor-lang,bpollack/factor,jwmerrill/factor,ceninan/factor,mcandre/factor,AlexIljin/factor,erg/factor,bjourne/factor,AlexIljin/factor,littledan/Factor,sarvex/factor-lang,sarvex/factor-lang,dch/factor,tgunr/factor,mrjbq7/factor,ehird/factor,nicolas-p/factor,factor/factor,bpollack/factor,erg/factor,dch/factor,slavapestov/factor,kingcons/factor,factor/factor,nicolas-p/factor,bpollack/factor,tgunr/factor,Keyholder/factor,cataska/factor,cataska/factor,bjourne/factor,seckar/factor