Unknown option: belloff=all
### Expected behavior.

centos7 使用官网脚本安装后，打开vim提示：
Error detected while processing function SpaceVim#begin..SpaceVim#default#options:
line  129:
E518: Unknown option: belloff=all
Press ENTER or type command to continue

在.SpaceVim/autoload/SpaceVim/default.vim注释belloff=all后，SpaceVim颜色主题出现异样

### The reproduce ways from Vim starting.

curl -sLf https://spacevim.org/cn/install.sh | bash

### Output of the `:SPDebugInfo!`

_No response_