Fix the issue when cursor could have been moved to a negative position.
Fix the issue when cursor could have been moved to a negative position.

Apt sends an incorrect column 0 instead of 1: e.g. `sudo apt install emacs`.

railsware/upterm,vshatskyi/black-screen,black-screen/black-screen,black-screen/black-screen,shockone/black-screen,shockone/black-screen,railsware/upterm,vshatskyi/black-screen,vshatskyi/black-screen,vshatskyi/black-screen,black-screen/black-screen