Revert "prettyprint.config: string-limit? shouldn't be a global."
Revert "prettyprint.config: string-limit? shouldn't be a global."

This reverts commit d33877a9416f978d6d093ab80817af50f1401372.

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