misc/vim: update syntax file for none? addition.
misc/vim: update syntax file for none? addition.

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