"sudo mode"

[RuijieYu]

Suggestion to add a "global mode". I am trying to add a pacman hook but was unable to do so because I was under sudo. (And the hook's syntax to use execv instead of execvp makes it harder).

[Kharacternyk]

I have removed the mode because of lack of documentation (d804e5e). Reopening this.

[Kharacternyk]

v2.* doesn't suffer from the issue, closing it.