[git] GitLab remote: HTTP Basic: Access denied and fatal Authentication

In my case I reinstalled to the latest version of git (currently 2.16.2). I don't know if it was that my old version of git was outdated, but I read on a github page that this should be done if you stumble into https cloning errors. I figured it was an https cloning error as the error focuses on HTTP Basic, while GitLab uses HTTPS. I might be wrong in this thought process, but the solution helped in my case, and I hope this helps anyone in the future!