unix.ffi: Use a utility word for getting the aliases back.
unix.ffi: Use a utility word for getting the aliases back.

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