Coding Standards: Use strict comparison in wp_xmlrpc_server::_prepare_comment().

Follow-up to [20856].

Props aristath, poena, afercia, SergeyBiryukov.
See #62279.

git-svn-id: https://develop.svn.wordpress.org/trunk@59710 602fd350-edb4-49c9-b593-d223f7449a82

Author: SergeyBiryukov

src/wp-includes/class-wp-xmlrpc-server.php

@@ -1179,11 +1179,11 @@ protected function _prepare_comment( $comment ) {
 		// Format page date.
 		$comment_date_gmt = $this->_convert_date_gmt( $comment->comment_date_gmt, $comment->comment_date );
 
-		if ( '0' == $comment->comment_approved ) {
+		if ( '0' === $comment->comment_approved ) {
 			$comment_status = 'hold';
 		} elseif ( 'spam' === $comment->comment_approved ) {
 			$comment_status = 'spam';
-		} elseif ( '1' == $comment->comment_approved ) {
+		} elseif ( '1' === $comment->comment_approved ) {
 			$comment_status = 'approve';
 		} else {
 			$comment_status = $comment->comment_approved;