help: make sure error-classes are displayed in error index.
help: make sure error-classes are displayed in error index.

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