Role/Capability: Rename `upgrade_php` capability to more suitable `update_php`.

This brings the name in line with user-facing language and similar names of existing related capabilities. Since the capability has not been part of any WordPress release, it can be renamed without any backward-compatibility implications.

Also missing props benhuberman for [43006].

Fixes #44457.

Built from https://develop.svn.wordpress.org/trunk@43381


git-svn-id: http://core.svn.wordpress.org/trunk@43209 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/includes/dashboard.php

@@ -37,7 +37,7 @@ function wp_dashboard_setup() {
 
 	// PHP Version.
 	$response = wp_check_php_version();
-	if ( $response && isset( $response['is_acceptable'] ) && ! $response['is_acceptable'] && current_user_can( 'upgrade_php' ) ) {
+	if ( $response && isset( $response['is_acceptable'] ) && ! $response['is_acceptable'] && current_user_can( 'update_php' ) ) {
 		add_filter( 'postbox_classes_dashboard_dashboard_php_nag', 'dashboard_php_nag_class' );
 		wp_add_dashboard_widget( 'dashboard_php_nag', __( 'PHP Update Required' ), 'wp_dashboard_php_nag' );
 	}

wp-includes/capabilities.php

@@ -554,7 +554,7 @@ function map_meta_cap( $cap, $user_id ) {
 				$caps[] = 'manage_options';
 			}
 			break;
-		case 'upgrade_php':
+		case 'update_php':
 			if ( is_multisite() && ! is_super_admin( $user_id ) ) {
 				$caps[] = 'do_not_allow';
 			} else {

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.0-alpha-43380';
+$wp_version = '5.0-alpha-43381';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.