prettyprint.backend: make +nil+ render as L{ }.
prettyprint.backend: make +nil+ render as L{ }.

AlexIljin/factor,bpollack/factor,factor/factor,factor/factor,AlexIljin/factor,tgunr/factor,factor/factor,AlexIljin/factor,tgunr/factor,tgunr/factor,mrjbq7/factor,factor/factor,bpollack/factor,AlexIljin/factor,mrjbq7/factor,AlexIljin/factor,bpollack/factor,tgunr/factor,AlexIljin/factor,bpollack/factor,mrjbq7/factor,AlexIljin/factor,tgunr/factor,mrjbq7/factor,bpollack/factor,tgunr/factor,bpollack/factor,factor/factor,bpollack/factor,mrjbq7/factor,factor/factor,mrjbq7/factor