talks.tc-lisp-talk: fix $snippet "f"
talks.tc-lisp-talk: fix $snippet "f"

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