Ubuntu 16.10 禁用 Guest 访客
修改: ```fallback sudo vim /usr/share/lightdm/lightdm.conf.d/50-guest-wrapper.conf ``` ```fallback [Seat:*] allow-guest=false ``` 并非以前版本的 `/etc/lightdm/lightdm.conf.d` 位置,而是 `/usr/share/...
修改: ```fallback sudo vim /usr/share/lightdm/lightdm.conf.d/50-guest-wrapper.conf ``` ```fallback [Seat:*] allow-guest=false ``` 并非以前版本的 `/etc/lightdm/lightdm.conf.d` 位置,而是 `/usr/share/...