Coding Standards: Use strict comparison where count() is involved.

Follow-up to [1636], [6974], [8114], [10322], [13326], [14760], [18006], [18541], [19743], [23249], [24115], [33359].

Props aristath, poena, afercia, SergeyBiryukov.
See #57839.
Built from https://develop.svn.wordpress.org/trunk@55642


git-svn-id: http://core.svn.wordpress.org/trunk@55154 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/pluggable.php

@@ -432,7 +432,7 @@ if ( ! function_exists( 'wp_mail' ) ) :
 					$recipient_name = '';
 
 					if ( preg_match( '/(.*)<(.+)>/', $address, $matches ) ) {
-						if ( count( $matches ) == 3 ) {
+						if ( count( $matches ) === 3 ) {
 							$recipient_name = $matches[1];
 							$address        = $matches[2];
 						}