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

src/wp-admin/index.php

@@ -25,7 +25,7 @@ wp_check_php_mysql_versions();
 wp_load_translations_early();
 
 // Die with an error message
-$die  = sprintf(
+$die = sprintf(
 	/* translators: %1$s: WordPress, %2$s: src, %3$s: build */
 	__( 'You seem to be running %1$s from the %2$s directory. %1$s needs to be built and run from the %3$s directory before we can get started.' ),
 	'WordPress',
@@ -46,4 +46,4 @@ $die .= '<p>' . sprintf(
 	__( 'https://make.wordpress.org/core/handbook/tutorials/installing-wordpress-locally/' )
 ) . '</p>';
 
-wp_die( $die, __( 'WordPress &rsaquo; Error' ) );
+wp_die( $die, __( 'WordPress &rsaquo; Error' ) );