Coding Standards: Upgrade WPCS to 1.0.0

WPCS 1.0.0 includes a bunch of new auto-fixers, which drops the number of coding standards issues across WordPress significantly. Prior to running the auto-fixers, there were 15,312 issues detected. With this commit, we now drop to 4,769 issues.

This change includes three notable additions:
- Multiline function calls must now put each parameter on a new line.
- Auto-formatting files is now part of the `grunt precommit` script. 
- Auto-fixable coding standards issues will now cause Travis failures.

Fixes #44600.



git-svn-id: https://develop.svn.wordpress.org/trunk@43571 602fd350-edb4-49c9-b593-d223f7449a82

tests/phpunit/tests/theme.php

@@ -324,7 +324,8 @@ class Tests_Theme extends WP_UnitTestCase {
 	 */
 	function test_wp_keep_alive_customize_changeset_dependent_auto_drafts() {
 		$nav_created_post_ids = $this->factory()->post->create_many(
-			2, array(
+			2,
+			array(
 				'post_status' => 'auto-draft',
 				'post_date'   => gmdate( 'Y-m-d H:i:s', strtotime( '-2 days' ) ),
 			)