arch-bootstrap issues 2020

[Mange]

Note to self:

• The hostname util is also needed and needs to be installed automatically. Install via inetutils.
• visudo breaks if vi is not installed (vim will not install /usr/bin/vi) because root's $EDITOR is empty. The script should check for /usr/bin/vi{,m} and set $EDITOR or install vim by default.

[Mange]

I should mirror https://gist.github.com/gutoandreollo/e12455886149a6c85a70 to this repo so I don't lose it.