build.sh: Only pull into current branch so we don't end up merging
build.sh: Only pull into current branch so we don't end up merging

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