Try
this and let us know if it works.
Hello,
I did try to follow the "instructions" but it seems to me that the info was released for a much older platform, since I could not find the location of the mentioned file.. I think that was made for 10.3..
EDIT: I found this other
article, which shows how to edit the "sudo" for an extensive timeout, in the guide they missed to type the "a" key just after moving to the last line of the file with shift+G to start "editing", but for the rest is pretty accurate. In this other
article it describes how to change the editor, vim is a bit weird to what I am used to.
Hope this helps!