Bug 1468658 - Enable eslint 'prefer-rest-params'
Bug 1468658 - Enable eslint 'prefer-rest-params'

https://eslint.org/docs/rules/prefer-rest-params

KWierso/treeherder,KWierso/treeherder,KWierso/treeherder,edmorley/treeherder,edmorley/treeherder,edmorley/treeherder,edmorley/treeherder,KWierso/treeherder