Don't need to lint arclint

Summary: More files that don't need linting

Test Plan: ... run the build

Reviewers: evan

Reviewed By: evan

Subscribers: juan, evan

Differential Revision: https://phab.nylas.com/D3599

build/tasks/package-task.js

@@ -192,6 +192,7 @@ module.exports = (grunt) => {
         '\\.lint$',
         '\\.lintignore$',
         '\\.arcconfig$',
+        '\\.arclint$',
         '\\.flowconfig$',
         '\\.jshintignore$',
         '\\.gitattributes$',