You’re looking in the wrong file.
config-validator.js is what’s throwing the error, and the text of the error tells you to look in
jsx-a11y/label-has-for. Which, in the copy of the package I just downloaded, is
'jsx-a11y/label-has-for': [2, ['label']]. According to the error message, that’s wrong, but I don’t know what it should be.
So the problem is not Atom or ESLint. The problem is specifically that one rule in
eslint-config-rallycoding. That package hasn’t been updated in a year and doesn’t have a public repository, so I wouldn’t feel too confident about getting them to fix it. Best to uninstall that package and look for something else, unless you feel up to fixing and republishing it.