tar: cleanup stack effects, minor things.
tar: cleanup stack effects, minor things.

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