"credential.#{http_fetch_url}.username", 'none'],
['git', '--git-dir', @workdir, 'config', '--local',
"credential.#{http_fetch_url}.helper",
"credential.#{http_fetch_url}.username", 'none'],
['git', '--git-dir', @workdir, 'config', '--local',
"credential.#{http_fetch_url}.helper",