Index: edit-comments.php
===================================================================
--- edit-comments.php	(revision 46888)
+++ edit-comments.php	(working copy)
@@ -24,7 +24,7 @@
 if ( $doaction ) {
 	check_admin_referer( 'bulk-comments' );
 
-	if ( 'delete_all' == $doaction && ! empty( $_REQUEST['pagegen_timestamp'] ) ) {
+	if ( 'delete_all' === $doaction && ! empty( $_REQUEST['pagegen_timestamp'] ) ) {
 		$comment_status = wp_unslash( $_REQUEST['comment_status'] );
 		$delete_time    = wp_unslash( $_REQUEST['pagegen_timestamp'] );
 		$comment_ids    = $wpdb->get_col( $wpdb->prepare( "SELECT comment_ID FROM $wpdb->comments WHERE comment_approved = %s AND %s > comment_date_gmt", $comment_status, $delete_time ) );
@@ -31,7 +31,7 @@
 		$doaction       = 'delete';
 	} elseif ( isset( $_REQUEST['delete_comments'] ) ) {
 		$comment_ids = $_REQUEST['delete_comments'];
-		$doaction    = ( $_REQUEST['action'] != -1 ) ? $_REQUEST['action'] : $_REQUEST['action2'];
+		$doaction    = ( -1 !== $_REQUEST['action'] ) ? $_REQUEST['action'] : $_REQUEST['action2'];
 	} elseif ( isset( $_REQUEST['ids'] ) ) {
 		$comment_ids = array_map( 'absint', explode( ',', $_REQUEST['ids'] ) );
 	} elseif ( wp_get_referer() ) {