ESLint v5.2.0 released

Highlights

• When using the --cache flag, the results for files with linting errors are now saved to the cache. This should result in improved performance when using --cache on a codebase with existing linting errors.

Enhancements

• 81283d0 Update: Cache files that failed linting (fixes #9948) (#10571) (Kevin Partington)

Documentation

• 9f93d5f Docs: Updated Working with Custom Formatters (fixes #9950) (#10592) (Marla Foreman)

Dependency Upgrades

• 13cc63e Upgrade: ignore@4.0.2 (#10619) (Rouven Weßling)
• 761f802 Upgrade: eslint-plugin-node to 7.0.1 (#10612) (Toru Nagashima)

Build Related

• c517b2a Build: fix npm run perf failing(fixes #10577) (#10607) (薛定谔的猫)
• 80b296e Build: package.json update for eslint-config-eslint release (ESLint Jenkins)
• 64dfa21 Build: Fix prerelease logic in blog post generation (fixes #10578) (#10581) (Kevin Partington)

Chores

• ac77a80 Chore: Fixing a call to Object.assign.apply in Linter (#10629) (Kevin Partington)
• e596939 Chore: fix redundant equality check (#10617) (Toru Nagashima)
• 9aaf195 Chore: Extract lint result cache logic (refs #9948) (#10562) (Kevin Partington)
• e4e7ff2 Chore: fix error message in eslint-config-eslint (#10588) (薛定谔的猫)
• 1e88170 Chore: Move lib/logging and lib/timing to lib/util/ (refs #10559) (#10579) (Kevin Partington)
• 0faf633 Chore: Simplify helper method in Linter tests (#10580) (Kevin Partington)