tools: update ESLint to 4.2.0
ESLint 4.2.0 contains a fix for a bug that is blocking us from moving to the non-legacy stricter indentation linting. Update to 4.2.0 to remove the blocking issue.
Refs: https://github.com/eslint/eslint/issues/8882 Refs: https://github.com/eslint/eslint/pull/8885
Checklist
-
make -j4 test
(UNIX), orvcbuild test
(Windows) passes -
commit message follows commit guidelines
Affected core subsystem(s)
tools