CentOS7にvim8をインストール

Ghettoforgeを使う

rpm -Uvh http://mirror.ghettoforge.org/distributions/gf/gf-release-latest.gf.el7.noarch.rpm
rpm --import http://mirror.ghettoforge.org/distributions/gf/RPM-GPG-KEY-gf.el7
sudo yum --enablerepo=gf-plus install vim-enhanced.x86_64  vim-common.x86_64  vim-minimal.x86_64